1914-1918 World War One 1919 * Irish War of Independence begins. 1919-21. * Communist-led insurrection in Hungary establishes Hungarian Socialist Republic. Hungarian troops invade Czechoslovakia. Romania intervenes, invading Hungary and occupying Budapest to end the six-month-old republic. * Amritsar Massacre in India's Pubjab sets the stage for Indian independence decades later. * Chinese forces occupy Outer Mongolia. * British forces defeat a Masud insurrection in Waziristan, in northwest Pakistan. * The Russian Civil War begins. * Lithuanian War of Independence is fought. * Arabian civil war breaks out. * Armenains rebel against occupying Turkish forces. 1920 * Russian-Polish war breaks out in April. * French forces fighting in Syria take Damascus, forcing King Faisal's Arab army to flee the country. * In Mexico, General Alvaro Obregon leads a successful insurrection against the government of Venustiano Carranza, who is assassinated. 1921 * Irish War of Independence ends, but is followed in short order by the Irish Civil War (1921-22). * Bolshevik soldiers rebel at Kronstadt naval base near St. Petersburg, but are quickly suppressed. * Six-year Rif War begins in Morocco. * Greek-Turkish War intensifies when Turkish forces push Greek soldiers out of myrna, granted them by the Treaty of Sevres. * Reza Shah Pahlevi seizes power in Persia. * Soviet and Mongolian forces invade Mongolia. * Panama-Costa Rica border war is contained. * Ex-emperor Charles fails in second attempt to regain the throne of Hungary. 1922 * Japanese forces withdraw from Siberia, ending the Russian Civil War. * Greek army is expelled from Turkey. * British forces defeat an insurrection in occupied Kurdistan. 1923 * In Bavaria, Adolf Hitler's Nazi Party fails in an attempted coup - the infamous Beer Hall Putsch. * French and British occupy Germany's Ruhr Valley. * Military coup in Spain gives that country a new prime minister. * Guerrilla insurrection rips through Bulgaria. * In Libya, Italian forces begin eight-year campain to exterminate the Senussi people. More than 50,000 natives die. 1924 * Ibn Saud's forces take Mecca in Arabian Civil War. * Virtual civil war ends in Brazil. * Military coup occurs in Chile. 1925 * Kurdish forces rebel unsuccessfully in Turkey after promised independence vanishes. * Druze insurrection in southern Syria meets with initial success. * British troops kill 62 Chinese military cadets and civilian demonstrators in Shanghai. * Liberals fight Conservatives in Nicaragua's civil war. American forces intervene on the side of the Conservatives. 1926 * Army insurrection ends first Portuguese republic. * Polish general Josef Pilsudski takes power in a military coup. * French and Spanish forces put an end to Morocco's Rif War. * In China, Kuomintang and Communist forces join to capture Hankow, Nanking and Shanghai from warlords, the first stage in the reunification of the country. * A Catholic insurrection in Mexico follows government restrictions on Roman Catholics. U.S. troops occupy Nicaragua. 1927 * French forces defeat Druze rebels in Syria. * Chinese Civil War, which does not end until 1949, begins with the Shanghai Massacre. 1928 * Joseph Stalin's purges begin in the Soviet Union. * Haile Selassie takes power by coup in Ethiopia. 1929 * Arab-Jewish riots grip Palestine in a dispute over Jerusalem's Wailing Wall. * Soviet forces invade Manchuria. * Afghanistan is split by civil war. * General Gonzalo Escobar leads another short-lived, failed rebellion in Mexico. 1930 * Kurdish independence forces fail in two attempts to overthrow governments in Iraq and Iran. * Dervish rebellion in Turkey is quelled by government forces led by Mustapha Kemal. * Another military coup occurs in Brazil. 1931 * Republican forces depose Spanish King Alfonso XIII. * Greece and Bulgaria clash over borders. * Italian forces end war with the Senussi in Libya. * Japanese forces seize Manchuria. 1932 * Kurdish independence fighters renew fight for independence, but are smashed by Iraqi troops and British warplanes. * Bolivia and Paraguay fight over the Chaco region. * Brazilian city of Sao Paulo rebels against the national dictatorship, but rises and falls alone. 1933 * The Chinese Civil War continues * Japanese forces invade Jehol in Inner Mongolia, claiming it as part of Manchuria. * Anarchists rebel in Barcelona and a number of other Spanish cities, but are beated back. 1934 * Stalin's 1967 successful military coup in Greece and go on to hold power for seven years. * Cyprus is partitioned between the warring Greek and Turkish populations. * Stunning Israeli successes in the Third Arab-Israeli War lead to the conflict being renmaed the Six-Day War - the length of time it takes Israel to defeat armed forces from Egypt, Jordan and Syria. * The Nigeria-Biafra Civil War, one of hte bloodiest on the African continent, begins; millions - most of them children and other noncombatants - would die before the restoration of peace in 1970. 1968 * Soviet troops invade Czechoslovakia to put an end to the short-lived Prague Spring reforms of Alexander Dubcek. * Germany's Baader-Meinhof Group begins a five-year series of bombings, murders and robberies in West Germany. * In Africa, fighting continues in Nigeria-Biafra, Yemen, Chad, Muscat and Oman, and in Mali. * North Korean forces seize the USS Pueblo and its 83-man crew.