who was the us at war with in ww2
Japan Italy Germany
title: World War II text: the long Battle of the Atlantic followed. On 22 June 1941, the European Axis powers launched an invasion of the Soviet Union, opening the largest land theatre of war in history. This Eastern Front trapped the Axis, most crucially the German Wehrmacht, into a war of attrition. In December 1941, Japan launched a surprise attack on the United States and European colonies in the Pacific Ocean. Following an immediate U.S. declaration of war against Japan, supported by one from Great Britain, the European Axis powers quickly declared war on the U.S. in solidarity with their Japanese ally. Rapid Japanese conquests title: World War II text: in China and Indochina by mid-December. In the Pacific, US forces continued to press back the Japanese perimeter. In mid-June 1944, they began their offensive against the Mariana and Palau islands, and decisively defeated Japanese forces in the Battle of the Philippine Sea. These defeats led to the resignation of the Japanese Prime Minister, Hideki Tojo, and provided the United States with air bases to launch intensive heavy bomber attacks on the Japanese home islands. In late October, American forces invaded the Filipino island of Leyte; soon after, Allied naval forces scored another large victory in the Battle of Leyte title: World War II text: a defensive war. To prevent American intervention while securing the perimeter, it was further planned to neutralise the United States Pacific Fleet and the American military presence in the Philippines from the outset. On 7 December 1941 (8 December in Asian time zones), Japan attacked British and American holdings with near-simultaneous offensives against Southeast Asia and the Central Pacific. These included an attack on the American fleets at Pearl Harbor and the Philippines, landings in Thailand and Malaya, and the Battle of Hong Kong. These attacks led the United States, United Kingdom, China, Australia and several other states to formally title: Allies of World War II text: were as follows: the Albanian National Liberation Front, the Chinese Red Army, the Greek National Liberation Front, the Hukbalahap, the Malayan Communist Party, the People's Republic of Mongolia, the Polish People's Army, the Tuvan People's Republic (annexed by the Soviet Union in 1944), the Viet Minh and the Yugoslav Partisans. The United States had indirectly supported Britain's war effort against Germany up to 1941 and declared its opposition to territorial aggrandizement. Materiel support to Britain was provided while the U.S. was officially neutral via the Lend-Lease Act starting in 1941. President Franklin D. Roosevelt and Prime Minister Winston Churchill in title: Japan–United States relations text: between the Japan's commitment to conquer China, and America's commitment to defend China. Japan's civilian government fell and the Army under General Tojo took full control, bent on war. Japan attacked the American navy base at Pearl Harbor, Hawaii, on December 7, 1941. In response, the United States declared war on Japan. Japan's Axis allies, including Nazi Germany, declared war on the United States days after the attack, bringing the United States into World War II. The conflict was a bitter one, marked by atrocities such as the executions and torture of American prisoners of war by the Imperial Japanese