North America 1840
Mexico was more stable than Central America, but only marginally so. Under the Centralist regime which had held sway since ...
North America 1845
Annexation of Texas
An even bigger flashpoint than Oregon was Texas, which wanted to join the US despite Mexican warnings that doing so ...
North America 1846
Conquest of California & New Mexico
At the outbreak of the Mexican-American War, the US had sent a cavalry force to cross the continent and a ...
North America 1855
In 1854 the Kansas-Nebraska Act created the new territories of Kansas and Nebraska, opening them up for settlement and granting ...
North America 1895
Nicaragua and Venezuela Crises
In 1894, Nicaragua annexed the Mosquito Reserve, violating a previous treaty with Great Britain. In response, the British occupied Corinto ...
East Asia 1898
In response to American support of Cuban revolutionaries, Spain declared war on the United States in April 1898. However the ...
North America 1898
By 1898, the long-running Cuban war for independence was aggravating US-Spanish relations. In February, the USS Maine sunk in an ...
East Asia 1898
Treaty of Paris
American gains in the Spanish-American War were confirmed at the Treaty of Paris, ceding Cuba, Puerto Rico, the Philippines, and ...
Second Samoan Civil War
In 1899, Samoa broke into its second civil war in a decade, when the Germans supported a rebellion against the ...
North America 1900
Thousand Days' War
The Spanish-American War gave the US an empire in the Caribbean and the Pacific and marked its emergence as a ...
North America 1904
The American gains against Spain increased its interest in procuring a Central American canal to link its Atlantic and Pacific ...
North America 1907
Great White Fleet
In 1902-03, Britain, Germany and Italy had blockaded Venezuela when it refused to repay its foreign debts. In response, US ...
North America 1919
Treaty of Versailles
US involvement helped the Allies win the Great War in 1918. The next year, Germany was forced to sign the ...
North America 1929
Wall Street Crash
Further measures to ensure world peace were made at the US and French sponsored Kellogg-Briand Pact in 1928. In the ...
North America 1934
The Great Depression hit the United States hard, with a nearly 45% drop in industrial production and widespread unemployment peaking ...
North America 1959
In 1952, Colonel Fulgencio Batista seized power in Cuba, ending elections and aligning with wealthy landowners and foreign investors. Batista ...
North America 1962
Cuban Missile Crisis
US-Cuban relations quickly deteriorated as Castro's new regime cracked down on the influence of foreign businesses and supported revolution ...
The coming of the 1960s saw the Cold War heating up, fueled by advances in missile technology. In 1961, another ...
Height of the Cold War
Although the Warsaw Pact was officially a defensive alliance, attempts to break with the Pact were crushed in Hungary (1956 ...
North America 1983
In 1979, left-wing Sandinista forces [[WNicaraguan_Revolution|overthrew the government in Nicaragua]], with a similar revolution threatening to topple the junta ...