The government of Colombia sends military forces to suppress a month-long strike by United Fruit Company workers, resulting in an unknown number of deaths.

The Banana Massacre was a massacre of workers of the United Fruit Company that occurred between December 5 and 6, 1928, in the town of Ciénaga near Santa Marta, Colombia. A strike began on November 12, 1928, when the workers ceased to work until the company would reach an agreement with them to grant them dignified working conditions. After several weeks with no agreement, in which the United Fruit Company refused to negotiate with the workers, the government of Miguel Abadía Méndez assigned Cortés Vargas as military chief in the Magdalena department and sent 700 men from the Colombian Army to quell the strikers, resulting in the massacre of 47–2000 people.

Strike action, also called labor strike, labour strike in British English, or simply strike, is a work stoppage caused by the mass refusal of employees to work. A strike usually takes place in response to employee grievances. Strikes became common during the Industrial Revolution, when mass labor became important in factories and mines. As striking became a more common practice, governments were often pushed to act. When government intervention occurred, it was rarely neutral or amicable. Early strikes were often deemed unlawful conspiracies or anti-competitive cartel action and many were subject to massive legal repression by state police, federal military power, and federal courts. Many Western nations legalized striking under certain conditions in the late 19th and early 20th centuries.

The United Fruit Company was an American multinational corporation that traded in tropical fruit grown on Latin American plantations and sold in the United States and Europe. The company was formed in 1899 from the merger of the Boston Fruit Company with Minor C. Keith's banana-trading enterprises. It flourished in the early and mid-20th century, and it came to control vast territories and transportation networks in Central America, the Caribbean coast of Colombia, and the West Indies. Although it competed with the Standard Fruit Company for dominance in the international banana trade, it maintained a virtual monopoly in certain regions, some of which came to be called banana republics – such as Costa Rica, Honduras, and Guatemala.