This is part of a series on nonviolent protest methods, which explains approaches and provides inspirational examples from history. For additional resources, please explore the Museum of Protest’s activist guides and view items in the collection.

Stay-in strikes represent one of the more powerful tactics in the history of nonviolent resistance—workers occupying their workplace and refusing to leave until their demands are met.

This method, classified as Method 182 in Gene Sharp’s 198 Methods of Nonviolent Action, has transformed labor relations, toppled governments, and secured rights that millions enjoy today. Unlike conventional strikes where workers walk off the job and picket outside, stay-in strikers remain physically inside their factories, offices, or institutions, creating a situation where employers cannot simply replace them with strikebreakers or remove valuable equipment.

From the automobile plants of 1930s Michigan to the ceramics factories of 21st-century Argentina, this tactic has proven remarkably adaptable across cultures, industries, and political systems.

What makes a stay-in strike different from other forms of protest

The strategic genius of a stay-in strike lies in what scholars call the “dual leverage” effect. Workers simultaneously withhold their labor and control the employer’s physical assets—the machinery, raw materials, finished products, and buildings that represent the employer’s capital investment. This creates an asymmetric power dynamic that tips decisively toward workers.

When employees remain inside a factory, several advantages emerge that conventional walkouts cannot replicate. First, strikebreakers cannot be brought in to resume production, since the facility remains occupied. Second, employers cannot remove valuable equipment, liquidate inventory, or relocate operations without the workers’ consent. Third, police and security forces face a genuine dilemma: forcibly evicting workers risks damaging the very property they’re hired to protect. As one analysis of the 1936-37 Flint strike noted, General Motors “had the law on their side, but they risked public humiliation and legal consequences of their own if they used physical force to evict the workers.”

The psychological impact on authorities should not be underestimated. Stay-in strikers force their opponents to make the first aggressive move, potentially generating public sympathy for the workers. They demonstrate organizational capacity and discipline that commands respect. And they create media-friendly dramatic situations that draw attention to their cause in ways that conventional picketing cannot match.

Gene Sharp’s framework places stay-in strikes within the category of Nonviolent Intervention—the most confrontational class of nonviolent methods. Unlike protest and persuasion (which aim to communicate) or noncooperation (which aims to withdraw), intervention methods directly obstruct an opponent’s operations. Sharp describes these as potentially “coercive” because they can “make it impossible for an opponent to rule or carry out their policies.”

The first factory occupations in early twentieth-century America and Europe

The earliest documented stay-in strike in the United States occurred at the General Electric plant in Schenectady, New York, in 1906, when members of the Industrial Workers of the World (IWW) staged a 65-hour overnight occupation. While this pioneering action established the basic concept, the tactic would not reach full development for another three decades.

Italy witnessed the first massive wave of factory occupations during the Biennio Rosso (“Two Red Years”) of 1919-1920. Following World War I, approximately 500,000 Italian metal workers occupied factories across the industrial north, particularly in Turin and Milan. Workers seized control of production, raised red and black flags over the factories, armed themselves, and established factory councils for democratic decision-making. At Fiat plants in Turin alone, 185 metal-working factories were occupied by September 1920. Workers continued production under self-management, paying themselves wages and demonstrating that industry could function without bosses.

The Italian occupations ultimately failed when reformist union leadership accepted government-mediated settlements, and the defeat contributed to the rise of fascism. However, the Biennio Rosso established crucial precedents: it proved workers could run factories themselves, demonstrated the power of coordinated occupation across an industry, and influenced movements worldwide for the next century.

The 1936 French factory occupations that won paid vacations

When the Popular Front coalition won French elections in May 1936, workers did not wait for legislation to improve their conditions. Beginning with an occupation at the Bréguet Aviation factory in Le Havre on May 26, a wave of stay-in strikes swept across France. Within weeks, over two million workers had occupied more than 12,000 factories, hotels, department stores, and workshops.

At the Renault plants in Billancourt, at metal works throughout Paris, at textile factories and shipyards, workers took control and refused to leave. Some 600,000 demonstrators marched through Paris on May 24 in solidarity. The occupations created a festive atmosphere—workers organized concerts, plays, and sports within the occupied factories while maintaining strict discipline and preventing any damage to equipment.

The pressure proved irresistible. On June 7, 1936, employer representatives and unions signed the Matignon Agreements, which delivered extraordinary gains:

• Wage increases of 7-15%
• The 40-hour work week
• Two weeks of paid vacation—the first in French history
• Collective bargaining rights
• Recognition of shop stewards

French labor historians call the Matignon Agreements “the Magna Carta of French Labor.” The 1936 occupations demonstrated that a coordinated national wave of stay-in strikes could win revolutionary improvements in a matter of weeks.

The Flint sit-down strike that transformed American labor

The most consequential stay-in strike in American history began on December 30, 1936, when workers at the General Motors Fisher Body Plant #1 in Flint, Michigan, refused to leave at the end of their shift. What started with just 50 workers would grow into a 44-day occupation that fundamentally transformed American labor relations.

The United Auto Workers (UAW) had chosen their target strategically. Flint’s Fisher Body plants produced the dies essential for stamping car body parts across GM’s entire production network. By occupying these chokepoint facilities, a relatively small number of workers could paralyze the world’s largest automaker. Within weeks, sit-downs spread to GM plants in Cleveland, Toledo, Detroit, and beyond, eventually involving more than 100,000 workers and idling 150,000 more through cascading supply chain effects.

Life inside the occupied factories was remarkably organized. Workers established committees for sanitation, entertainment, security, and food distribution. They held classes, played music, and staged plays. Crucially, they maintained strict discipline—no alcohol, no damage to company property, no confrontation that might justify forcible eviction. The Women’s Emergency Brigade, led by Genora Johnson Dollinger, provided essential external support, delivering food to strikers and, during one police assault, forming human chains around the plant.

The standoff reached crisis point on January 11, 1937—the “Battle of Bulls Run.” Police attacked strikers with tear gas and gunfire, but workers repelled them by turning fire hoses on the police in freezing weather and hurling car door hinges from upper windows. Fourteen workers and eleven police were injured, but the occupation held.

Michigan Governor Frank Murphy refused to deploy the National Guard against the strikers, and President Franklin Roosevelt declined to intervene on GM’s behalf. On February 11, 1937, after 44 days, GM capitulated completely. The company recognized the UAW as the exclusive bargaining representative for its workers, agreed to a $25 million wage increase, abolished piecework pay in favor of hourly wages, and established a 30-hour work week with time-and-a-half for overtime.

The aftermath was electric. Within one year, UAW membership exploded from 30,000 to 500,000. Wages for autoworkers rose by as much as 300%. Within two weeks of the Flint victory, 87 new sit-down strikes erupted in Detroit alone. Chrysler surrendered to union demands a month later. The Flint sit-down is often called “the most important strike in American history.”

Poland’s Solidarity movement and the shipyard occupations

On August 14, 1980, workers at the Lenin Shipyard in Gdańsk, Poland, locked the gates from inside and refused to leave. Their initial demand was simple: reinstatement of Anna Walentynowicz, a crane operator fired for her labor activism. But the occupation quickly evolved into something far larger.

Led by electrician Lech Wałęsa, who climbed the shipyard fence to join the strikers, workers formed the Inter-Factory Strike Committee (MKS) to coordinate with spreading occupations at other enterprises. By August 21, over 400,000 workers across Poland were represented by the MKS, with strikes and occupations affecting shipyards in Szczecin, steel mills, textile factories, and coal mines throughout Upper Silesia.

The strikers presented 21 Demands that went far beyond wages and working conditions:

• The right to form independent trade unions
• The right to strike
• Freedom of speech and press
• Release of political prisoners
• Broadcast of Sunday Mass on state television

The workers chose to occupy their factories rather than march in the streets for a specific reason: they had learned from the violent suppression of Polish protests in 1956 and 1970. By remaining inside the shipyards, they made it far more difficult for authorities to use force without causing catastrophic economic damage.

After seventeen days, the Communist government signed the Gdańsk Accords on August 31, 1980, accepting the workers’ core demands. The independent trade union Solidarity was born—the first free union in the Soviet bloc, which at its peak claimed 10 million members, representing one-third of Poland’s working population.

Though martial law in December 1981 temporarily crushed the movement and drove Solidarity underground, the shipyard occupations had fatally undermined the legitimacy of Communist rule. When semi-free elections were finally held in 1989, Solidarity won 99 of 100 Senate seats, and Lech Wałęsa became Poland’s first democratically elected president. The 21 Demands are now inscribed on the UNESCO Memory of the World Register.

Work-ins: the variation where workers keep producing

A creative adaptation of the stay-in strike emerged in Scotland in 1971. When the Conservative government of Edward Heath refused a £6 million loan to the Upper Clyde Shipbuilders (UCS), putting 8,500 jobs at risk, workers under shop stewards Jimmy Reid and Jimmy Airlie chose a novel approach: they occupied the shipyards but continued working.

Reid famously declared: “We are not going on strike. We are not even having a sit-in…we are going to ‘work-in.'” By continuing to build ships during the occupation, the workers demonstrated that the yards were viable businesses being deliberately destroyed by government policy. They proved their value rather than simply withdrawing it.

The UCS work-in lasted over six months, from July 1971 to February 1972. It attracted massive public support—80,000 people marched through Glasgow in solidarity, and the Scottish Trades Union Congress called its first-ever special conference. Even John Lennon contributed £5,000 to the cause.

The strategy worked brilliantly. The government reversed course completely, committing £35 million to restructure the yards and preserve roughly 7,000 jobs. The UCS work-in inspired more than 190 similar occupations across Britain over the following four years, establishing the work-in as a recognized variant of the occupation tactic.

Argentina’s recovered factories movement

When Argentina’s economy collapsed in December 2001—unemployment exceeding 25%, more than half the population in poverty—thousands of workers across the country faced a stark choice: accept permanent joblessness or take matters into their own hands.

At the Zanon ceramics factory in Patagonia, workers chose to fight. When management announced the factory’s closure on October 1, 2001, the 380 employees occupied the plant and refused to leave. In March 2002, they resumed production under worker control, renaming the enterprise FaSinPat (“Factory Without Bosses”). They adopted radically democratic structures: all workers received equal pay, major decisions were made by general assembly, and they allied with the local Mapuche indigenous community for raw materials.

When police attempted eviction in April 2003, 3,000 community members formed a human shield around the factory. The workers prevailed. By 2009, the provincial legislature voted to formally expropriate the factory and grant legal recognition to the workers’ cooperative. Production doubled to 400,000 square meters of ceramic tiles monthly, and the workforce expanded from 300 to 470.

The Zanon occupation was part of a broader empresas recuperadas (“recovered enterprises”) movement that saw workers occupy and restart more than 300 abandoned factories across Argentina, employing over 15,000 people. Their slogan—borrowed from Brazil’s Landless Workers Movement—captured the strategy perfectly: “Occupy, Resist, Produce.”

Republic Windows and Doors: the tactic returns to America

For decades after the 1930s, stay-in strikes virtually disappeared from American labor’s tactical repertoire. Courts had ruled them illegal trespass, and employers could now lawfully fire any worker who participated. But in December 2008, with the economy in free fall, the tactic made a dramatic return.

When Republic Windows and Doors in Chicago gave workers only three days’ notice that the factory would close—violating federal law requiring 60 days—240 members of UE Local 1110 occupied the plant on December 5. Their demands were modest: the severance pay, vacation pay, and health insurance owed to them under federal law.

The workers organized the occupation with military precision, dividing into three shifts covering all 24 hours. They formed committees for equipment maintenance, security, and media relations. They targeted not just their employer but Bank of America, the lender that had cut the company’s credit line, which had just received $25 billion in federal bailout funds.

President-elect Barack Obama publicly supported the workers. Protests organized by Jobs with Justice drew thousands to Bank of America branches. After six days, the occupation ended in complete victory: workers received $1.75 million in severance and benefits, averaging $7,000 per person.

The story did not end there. When a new owner attempted to close the factory in 2012, workers occupied again—this time for just 12 hours before winning a settlement. In 2013, they formed a worker cooperative, New Era Windows, taking permanent ownership of their workplace. The Republic Windows occupation demonstrated that the stay-in strike remained viable in 21st-century America.

The Sorbonne occupation and the spirit of May 1968

Student movements have adapted stay-in tactics for educational settings with equally dramatic effect. When French students occupied the Sorbonne beginning May 13, 1968, they transformed the ancient university into what they called an “autonomous people’s university.” Lecture halls became forums for continuous debate. Famous slogans appeared on walls: “It is forbidden to forbid,” “Be realistic, demand the impossible.”

The student occupation triggered a broader social explosion. Within days, 10 million French workers—one-third of the workforce—joined a general strike, making it the largest in French history. While President de Gaulle ultimately survived politically, winning a landslide in subsequent elections, the May events permanently transformed French culture and society.

The Sorbonne occupation inspired immediate imitation. At Columbia University in New York, students had already occupied five buildings in April 1968 to protest the university’s ties to Vietnam War research and plans to build a gymnasium in a public park that would exclude Black Harlem residents. The seven-day occupation ended with police arresting over 700 students, but achieved significant results: Columbia terminated its defense contracts and scrapped the controversial gymnasium project permanently.

Chilean students who occupied universities for seven months

Forty years after 1968, Chilean students proved that extended building occupations remained viable. When the 2011 Chilean student movement demanded free, quality public education and an end to for-profit education, they occupied over 100 high schools and universities across the country.

The occupation of Universidad de Chile’s Casa Central building lasted nearly seven months—the longest in the institution’s century-plus history. Students displayed remarkable creativity: they staged flash mobs dancing to Michael Jackson’s “Thriller,” dressed as superheroes, and organized 1,800 laps around the presidential palace to symbolize their $1.8 billion funding demand. At the movement’s height, student demands enjoyed 90% public approval.

Key leaders emerged who would reshape Chilean politics. Camila Vallejo and Gabriel Boric were elected to Congress in 2013. In 2016, Chile approved free university education for low and middle-income students—a direct result of the student movement. And in 2022, Gabriel Boric became President of Chile, representing the generation forged in the 2011 occupations.

From Hong Kong to Taipei: democratic occupations in Asia

Asian student movements have deployed occupation tactics with varying results. The Hong Kong Umbrella Movement of 2014 saw protesters occupy major intersections for 79 days demanding genuine universal suffrage. Though they failed to achieve electoral reform, the occupation—named for the umbrellas protesters used to deflect tear gas—created a new generation of pro-democracy activists and set the stage for the massive 2019 protests.

In Taiwan, the Sunflower Movement of March 2014 achieved more immediate success. When students learned that legislators planned to rush through a controversial trade agreement with China without proper review, approximately 400 of them stormed and occupied the Legislative Yuan, Taiwan’s parliament. They remained for 24 days, supported by a half-million-person march on March 30.

The occupation worked. The trade agreement remains unratified to this day—a complete victory for the students’ core demand. Charges against protesters were later dropped, and the movement gave birth to a new political party that won seats in subsequent elections. The Sunflower Movement is credited with fundamentally shifting Taiwan’s political trajectory.

Tahrir Square and the Arab Spring

The January 2011 occupation of Tahrir Square in Cairo demonstrated that public space occupations could topple dictatorships. For 18 days, hundreds of thousands of Egyptians occupied the central square demanding the end of Hosni Mubarak’s 30-year rule.

The occupation created a functioning alternative community within central Cairo. Protesters organized food distribution, medical stations, and security. Women constituted 40-50% of participants. When pro-Mubarak thugs attacked on horseback and camelback on February 2—the “Battle of the Camel”—protesters held their ground.

On February 11, 2011, Mubarak resigned. Though Egypt’s democratic transition ultimately failed, with a 2013 military coup restoring authoritarian rule, Tahrir Square became a global symbol of people power that inspired the Occupy movements worldwide.

Strategic considerations for effective stay-in strikes

Historical analysis reveals consistent patterns in successful stay-in strikes. Strategic positioning matters enormously—the Flint strikers succeeded partly because they occupied plants at critical chokepoints in GM’s production network, allowing a small number of workers to paralyze an entire corporation. Workers who occupy facilities with high leverage over supply chains or essential services gain disproportionate power.

Political context frequently determines outcomes. The 1936 French occupations coincided with a sympathetic Popular Front government. Michigan’s Governor Murphy refused to use force against the Flint strikers. Polish workers in 1980 calculated correctly that Soviet intervention was unlikely. Occupations during periods of sympathetic governance or broad public support have dramatically higher success rates.

Internal organization separates successful occupations from failures. The Flint strikers’ elaborate committee structure, strict rules (no alcohol, no property damage), and democratic decision-making maintained discipline over 44 days. Republic Windows workers organized three shifts with specialized teams. Poor organization leads to internal conflict, provocations that justify eviction, and eventual collapse.

External support networks provide essential sustenance. The Women’s Emergency Brigade fed Flint strikers. Polish workers received supplies from sympathetic communities. When occupied workers become isolated, their position becomes untenable. Successful occupations maintain robust connections to unions, community organizations, families, and media.

When stay-in strikes fail

Not all occupations succeed. The 1919-20 Italian factory occupations achieved remarkable worker self-management but ultimately collapsed when reformist union leadership accepted inadequate settlements. The defeat demoralized workers and contributed to the rise of Mussolini.

The 2009 Ssangyong Motors occupation in South Korea represents a particularly devastating failure. Workers held out for 77 days against mass layoffs, fortifying themselves in the factory’s paint department (whose flammable materials deterred tear gas). But the company cut off food, water, and electricity. Police helicopters dropped 200,000 liters of tear gas solution. The occupation ended in violent defeat, with 94 workers jailed and a $45 million lawsuit filed against the union. In the years following, more than 30 workers and family members died by suicide from the trauma and financial ruin. The director of the Netflix series Squid Game has confirmed that the protagonist’s backstory was based on the Ssangyong struggle.

Legal consequences pose serious risks. In the United States, the Supreme Court’s 1939 NLRB v. Fansteel decision definitively established that sit-down strikers can be lawfully terminated and prosecuted for trespass. This legal framework effectively eliminated the tactic from mainstream American labor’s repertoire for decades.

Modern adaptations and the future of occupation tactics

The GKN factory occupation in Florence, Italy, represents the longest-running factory occupation in Italian history. When workers learned in July 2021 that they were being laid off via mass email by their private equity owners, they occupied immediately. As of late 2024, they remain in control—over 900 days later.

But the GKN workers have innovated beyond mere occupation. They developed plans to convert the auto parts factory to produce solar panels and cargo bikes, partnering with university researchers on “reindustrialization from below.” They launched a crowdfunding campaign that raised over €1 million to establish a worker cooperative. Their slogan—Insorgiamo (“Let’s Rise Up”)—became a rallying cry connecting labor rights with environmental justice.

Technology has transformed how occupations function. The 2011 Occupy Wall Street movement pioneered continuous livestreaming and real-time social media coordination. Hong Kong’s Umbrella Movement used the mesh networking app FireChat when authorities disrupted internet access. Taiwan’s Sunflower Movement leveraged the smartphone culture of a generation raised as the ditouzu (“tribe of bowed heads”) and turned it toward political organizing.

The stay-in strike has proven remarkably adaptable across more than a century of social struggle. From industrial disputes to anti-colonial resistance, from student movements to pro-democracy uprisings, the basic insight remains constant: physically occupying contested space creates leverage that other tactics cannot match. Workers who refuse to leave deny their opponents the ability to simply continue business as usual. They force confrontation on their own terms, in their own space, at times of their choosing.

Gene Sharp classified 198 methods of nonviolent action for a reason—different situations call for different tactics. But among all 198, the stay-in strike stands out for its ability to combine economic disruption with dramatic moral theater, worker solidarity with community support, defensive positioning with offensive demands. When conditions align—strategic positioning, favorable political context, strong organization, external support—few tactics have proven more effective at winning rights, preserving jobs, or even bringing down governments.

The factory gates of Gdańsk, the shipyards of the River Clyde, the occupied Sorbonne, the ceramics plant in Patagonia—these spaces became stages on which ordinary people demonstrated extraordinary capacity for collective action. Their legacy reminds us that the most powerful changes often begin not with those who march in the streets, but with those who sit down, lock the doors, and simply refuse to leave.