The First Washington Conference, also known as the Arcadia Conference (ARCADIA was the code name used for the conference), was held in Washington, D.C., from December 22, 1941, to January 14, 1942. President Roosevelt of the United States and Prime Minister Churchill of the United Kingdom attended the conference, where they discussed a future United Nations, and representative of the Allies adopted the United Nations Declaration. [1]
On 7/8 December 1941, Japan invaded Thailand and attacked the British colonies of Malaya, Singapore, and Hong Kong as well as the United States military and naval bases in Hawaii, Wake Island, Guam, and the Philippines. [2] [3] [4]
On 7 of December, Canada declared war on Japan. [5] Followed on December 8, the United Kingdom, [a] [6] the United States, [b] [7] and the Netherlands [8] declared war on Japan, followed by China [9] and Australia [10] the next day. Four days after Pearl Harbor, Germany and Italy declared war on the United States, drawing the country into a two-theater war.
The conference brought together the top British and American military leaders, as well as Winston Churchill and Franklin Roosevelt and their aides, in Washington from December 22, 1941, to January 14, 1942, and led to a series of major decisions that shaped the war effort in 1942–1943.
Arcadia was the first meeting on military strategy between Britain and the United States; it came two weeks after the American entry into World War II. The Arcadia Conference was a secret agreement unlike the much wider postwar plans given to the public as the Atlantic Charter, agreed between Churchill and Roosevelt in August 1941.
From the start, significant differences in strategic priorities appeared. The British sought to push the Axis out of the Mediterranean, securing their lines of communications to their colonies. The American Navy, led by Admiral King, wished to prioritize fighting Japan, while the American Army, led by George C. Marshall, argued in favor of an immediate cross-channel invasion in 1942. Roosevelt, favoring naval strategy, was persuaded by Churchill to prioritize the Mediterranean, and even suggested to the Soviet Ambassador Litvinoff that a landing in North Africa might enable attacking German-occupied Europe from the south. Marshall, however, insisted upon a cross-channel invasion and suggested withdrawing from the liberation of Europe if the British did not agree to his plan. On Churchill's last day in Washington, the invasion of Guadalcanal was approved.
Roosevelt ultimately overruled Marshall after the British studied the feasibility of a cross-channel invasion and found it to be impossible in 1942. General Mark Clark, commander of all American forces in Britain, corroborated this conclusion later that year, pointing out that only one infantry division (the 34th Infantry Division) was available, but had neither amphibious training, anti-aircraft guns, tanks, nor landing craft. The 1st Armored Division also lacked equipment, as were the new divisions arriving in-theater.
The main policy achievements of Arcadia included the decision for "Germany First" (or "Europe first"—that is, the defeat of Germany was the highest priority); the establishment of the Combined Chiefs of Staff, based in Washington, for approving the military decisions of both the US and Britain; the principle of unity of command of each theater under a supreme commander; drawing up measures to keep China in the war; limiting the reinforcements to be sent to the Pacific; and setting up a system for coordinating shipping. All the decisions were secret, except the conference drafted the Declaration by United Nations, which committed the Allies to make no separate peace with the enemy, and to employ full resources until victory. [11] [12]
In immediate tactical terms, the decisions at Arcadia included an invasion of North Africa in 1942, sending American bombers to bases in England, and for the British to strengthen their forces in the Pacific. Arcadia created a unified American-British-Dutch-Australian Command (ABDA) in the Far East; the ABDA fared poorly. It was also agreed at the conference to combine military resources under one command in the European Theater of Operations (ETO). [13]
The Atlantic Charter was a statement issued on 14 August 1941 that set out American and British goals for the world after the end of World War II, months before the US officially entered the war. The joint statement, later dubbed the Atlantic Charter, outlined the aims of the United States and the United Kingdom for the postwar world as follows: no territorial aggrandizement, no territorial changes made against the wishes of the people (self-determination), restoration of self-government to those deprived of it, reduction of trade restrictions, global co-operation to secure better economic and social conditions for all, freedom from fear and want, freedom of the seas, abandonment of the use of force, and disarmament of aggressor nations. The charter's adherents signed the Declaration by United Nations on 1 January 1942, which was the basis for the modern United Nations.
The Cairo Conference, also known as the First Cairo Conference, was one of 14 summit meetings during World War II, which took place on November 22–26, 1943. The Conference was held at Cairo in Egypt between China, the United Kingdom and the United States. Attended by Chairman Chiang Kai-shek, British Prime Minister Winston Churchill and US President Franklin D. Roosevelt, it outlined the Allied position against the Empire of Japan during World War II and made decisions about post-war Asia.
Operation Sledgehammer was an Allied plan for a cross-Channel invasion of Europe during World War II, as the first step in helping to reduce pressure on the Soviet Red Army by establishing a Second Front. It was to be executed in 1942 and acted as a contingency alternative to Operation Roundup, the original Allied plan for the invasion of Europe in 1943. Allied forces were to seize the French Atlantic ports of either Brest or Cherbourg and areas of the Cotentin Peninsula during the early autumn of 1942, and amass troops for a breakout in the spring of 1943.
Ernest Joseph King was a fleet admiral in the United States Navy who served as Commander in Chief, United States Fleet (COMINCH) and Chief of Naval Operations (CNO) during World War II. He was the U.S. Navy's second-most senior officer in World War II after Fleet Admiral William D. Leahy, who served as Chief of Staff to the Commander in Chief. He directed the United States Navy's operations, planning, and administration and was a member of the Joint Chiefs of Staff and Combined Chiefs of Staff.
Europe first, also known as Germany first, was the key element of the grand strategy agreed upon by the United States and the United Kingdom during World War II after the United States joined the war in December 1941. According to this policy, the United States and the United Kingdom would use the preponderance of their resources to subdue Nazi Germany in Europe first. Simultaneously, they would fight a holding action against Japan in the Pacific, using fewer resources. After the defeat of Germany—considered the greatest threat to the UK and the Soviet Union—all Allied forces could be concentrated against Japan.
William Daniel Leahy was an American naval officer. The most senior United States military officer on active duty during World War II, he held several titles and exercised considerable influence over foreign and military policy. As a fleet admiral, he was the first flag officer ever to hold a five-star rank in the U.S. Armed Forces.
The Combined Chiefs of Staff (CCS) was the supreme military staff for the United States and Britain during World War II. It set all the major policy decisions for the two nations, subject to the approvals of British Prime Minister Winston Churchill and U.S. President Franklin D. Roosevelt.
The South-East Asian Theatre of World War II consisted of the campaigns of the Pacific War in the Philippines, Thailand, Indonesia, Indochina, Burma, India, Malaya, and Singapore between 1941 and 1945.
The American-British-Dutch-Australian (ABDA) Command, or ABDACOM, was the short-lived supreme command for all Allied forces in South East Asia in early 1942, during the Pacific War in World War II. The command consisted of the forces of Australia, the Netherlands, United Kingdom and the United States. The main objective of the command, led by General Sir Archibald Wavell, was to maintain control of the "Malay Barrier", a notional line running down the Malay Peninsula, through Singapore and the southernmost islands of the Dutch East Indies. ABDACOM was also known in British military circles as the "South West Pacific Command", although it should not be confused with the later South West Pacific Area command.
The Casablanca Conference or Anfa Conference was held in Casablanca, French Morocco, from January 14 to 24, 1943, to plan the Allied European strategy for the next phase of World War II. The main discussions were between US President Franklin Roosevelt and British Prime Minister Winston Churchill. Stalin could not attend. Key decisions included a commitment to demand Axis powers' unconditional surrender; plans for an invasion of Sicily and Italy before the main invasion of France; an intensified strategic bombing campaign against Germany; and approval of a US Navy plan to advance on Japan through the central Pacific and the Philippines. The last item authorized the island-hopping campaign in the Pacific, which shortened the war. Of all the decisions made, the most important was the Allied invasion of Sicily, which Churchill pushed for in part to divert American attention from opening a second front in France in 1943, a move that he feared would result in very high Allied casualties and not be possible until 1944.
South West Pacific Area (SWPA) was the name given to the Allied supreme military command in the South West Pacific Theatre of World War II. It was one of four major Allied commands in the Pacific War. SWPA included the Philippines, Borneo, the Dutch East Indies, East Timor, Australia, the Territories of Papua and New Guinea, and the western part of the Solomon Islands. It primarily consisted of United States and Australian forces, although Dutch, Filipino, British, and other Allied forces also served in the SWPA.
The Allies, formally referred to as the United Nations from 1942, were an international military coalition formed during World War II (1939–1945) to oppose the Axis powers. Its principal members by the end of 1941 were the "Big Four" – the United Kingdom, United States, Soviet Union, and China.
The military history of the United States during World War II covers the nation's role as one of the major Allies in their victory over the Axis Powers. The United States is generally considered to have entered the conflict with the 7 December 1941 surprise attack on Pearl Harbor by the Empire of Japan and exited it with the 2 September 1945 surrender of Japan. During the first two years of World War II, the US maintained formal neutrality, which was officially announced in the Quarantine Speech delivered by US President Franklin D. Roosevelt in 1937. While officially neutral, the US supplied Britain, the Soviet Union, and China with war materiel through the Lend-Lease Act signed into law on 11 March 1941, and deployed the US military to replace the British forces stationed in Iceland. Following the 4 September 1941 Greer incident involving a German submarine, Roosevelt publicly confirmed a "shoot on sight" order on 11 September, effectively declaring naval war on Germany and Italy in the Battle of the Atlantic. In the Pacific Theater, there was unofficial early US combat activity such as the Flying Tigers.
The following events occurred in December 1941:
The Allied leaders of World War II listed below comprise the important political and military figures who fought for or supported the Allies during World War II. Engaged in total war, they had to adapt to new types of modern warfare, on the military, psychological and economic fronts.
At the start of World War II, the Royal Navy was the strongest navy in the world, with the largest number of warships built and with naval bases across the globe. It had over 15 battleships and battlecruisers, 7 aircraft carriers, 66 cruisers, 164 destroyers and 66 submarines. With a massive merchant navy, about a third of the world total, it also dominated shipping. The Royal Navy fought in every theatre from the Atlantic, Mediterranean, freezing Northern routes to Russia and the Pacific Ocean.
The diplomatic history of World War II includes the major foreign policies and interactions inside the opposing coalitions, the Allies of World War II and the Axis powers, between 1939 and 1945.
The UK-US relations in World War II comprised an extensive and highly complex relationship, in terms of diplomacy, military action, financing, and supplies. British Prime Minister Winston Churchill and American President Franklin D. Roosevelt formed close personal ties, that operated apart from their respective diplomatic and military organizations.
The third presidential term of Franklin D. Roosevelt began on January 20, 1941, when he was once again inaugurated as the 32nd president of the United States, and the fourth term of his presidency ended with his death on April 12, 1945. Roosevelt won a third term by defeating Republican nominee Wendell Willkie in the 1940 United States presidential election. He remains the only president to serve for more than two terms. Unlike his first two terms, Roosevelt's third and fourth terms were dominated by foreign policy concerns, as the United States became involved in World War II in December 1941.
The foreign policy of the United States was controlled personally by Franklin D. Roosevelt during his first and second and third and fourth terms as the president of the United States from 1933 to 1945. He depended heavily on Henry Morgenthau Jr., Sumner Welles, and Harry Hopkins. Meanwhile, Secretary of State Cordell Hull handled routine matters. Roosevelt was an internationalist, while powerful members of Congress favored more isolationist solutions in order to keep the U.S. out of European wars. There was considerable tension before the Attack on Pearl Harbor in December 1941. The attack converted the isolationists or made them irrelevant. The US began aid to the Soviet Union after Germany invaded it in June 1941. After the US declared war in December 1941, key decisions were made at the highest level by Roosevelt, Britain's Winston Churchill and the Soviet Union's Joseph Stalin, along with their top aides. After 1938 Washington's policy was to help China in its war against Japan, including cutting off money and oil to Japan. While isolationism was powerful regarding Europe, American public and elite opinion strongly opposed Japan.