March 11 in Military History

President Abraham Lincoln issued War Order No. 3, removing Major General George B. McClellan from his position as General-in-Chief of the Union Army while retaining him as commander of the Army of the Potomac. Frustrated by McClellan's chronic refusal to advance, Lincoln and Secretary of War Stanton began directing Union strategy themselves, a pivotal shift in Civil War command.

British and Indian forces under Lieutenant General Sir Stanley Maude captured Baghdad during the Mesopotamian Campaign of World War I, reversing the humiliating British defeat at Kut al-Amara in 1916 where nearly 13,000 troops had surrendered. Maude's proclamation, "Our armies do not come into your cities and lands as conquerors or enemies, but as liberators", would be eerily echoed 86 years later.

The first documented cases of the Spanish Flu pandemic were reported at Camp Funston, Fort Riley, Kansas, when company cook Albert Gitchell reported to the camp hospital with fever, sore throat, and headache. Within weeks, over 1,100 soldiers at the camp were hospitalized. The pandemic would ultimately kill more soldiers than combat in World War I and between 50-100 million people worldwide.

President Franklin D. Roosevelt signed the Lend-Lease Act, enabling the United States to supply Britain, the Soviet Union, China, and other Allied nations with war materiel without requiring immediate payment. Over the course of the war, the U.S. provided approximately $50.1 billion in supplies, roughly $700 billion today, including 400,000 trucks, 12,000 armored vehicles, and 11,400 aircraft to the Soviet Union alone.

General Douglas MacArthur, his family, and a small party departed Corregidor Island aboard PT boats under direct orders from President Roosevelt, leaving behind 76,000 American and Filipino troops besieged on the Bataan Peninsula. MacArthur's evacuation through Japanese-controlled waters to Australia produced one of the war's most famous pledges, "I shall return", and shaped the entire Allied strategy in the Pacific Theater.

Less than 48 hours after the devastating firebombing of Tokyo, U.S. Army Air Forces launched a major incendiary raid on Nagoya, Japan's third-largest city and a critical center of aircraft production. Over 300 B-29 Superfortresses dropped incendiary bombs, destroying approximately two square miles of the city as part of General Curtis LeMay's new low-altitude firebombing strategy.

Mikhail Gorbachev became General Secretary of the Communist Party of the Soviet Union following the death of Konstantin Chernenko. His policies of glasnost and perestroika led to the INF Treaty, the withdrawal from Afghanistan, and ultimately the dissolution of the Soviet Union, ending the nuclear standoff that had defined global military strategy for four decades.

Lithuania became the first Soviet republic to declare independence, with the Supreme Council voting unanimously to restore the pre-1940 Lithuanian state. Moscow responded with an economic blockade and military intimidation, including the deployment of Soviet tanks through Vilnius, a Cold War endgame crisis that tested whether the Soviet Union would use force to preserve its empire.

Ten bombs detonated on four commuter trains during morning rush hour in Madrid, killing 193 people and wounding approximately 2,000. The al-Qaeda-inspired attack, carried out three days before Spain's general elections, led to the ruling party's defeat and Spain's subsequent withdrawal of troops from Iraq, demonstrating terrorism's power to influence democratic politics.

A magnitude 9.0 earthquake struck off northeastern Japan, generating a massive tsunami that devastated coastal communities and triggered a triple meltdown at the Fukushima Daiichi Nuclear Power Plant. The U.S. military launched Operation Tomodachi, the largest bilateral disaster relief operation in history, deploying 24,000 service members, 189 aircraft, and 24 naval vessels including the aircraft carrier USS Ronald Reagan.