Battle of the AtlanticThe Battle of the Atlantic, the longest continuous military campaign in World War II, ran from 1939 to the defeat of Nazi Germany in 1945, covering a major part of the naval history of World War II. At its core was the Allied naval blockade of Germany, announced the day after the declaration of war, and Germany's subsequent counter-blockade. The campaign peaked from mid-1940 through to the end of 1943.
Causes of World War IIThe causes of World War II have been given considerable attention by historians. The immediate precipitating event was the invasion of Poland by Nazi Germany on September 1, 1939, and the subsequent declarations of war on Germany made by Britain and France, but many other prior events have been suggested as ultimate causes.
Destroyers-for-bases dealThe destroyers-for-bases deal was an agreement between the United States and the United Kingdom on September 2, 1940, according to which 50 , , and -class US Navy destroyers were transferred to the Royal Navy from the US Navy in exchange for land rights on British possessions. Generally referred to as the "twelve hundred-ton type" (also known as "flush-deck", or "four-pipers" after their four funnels), the destroyers became the British and were named after towns common to both countries.
Executive Office of the President of the United StatesThe Executive Office of the President of the United States (EOP) comprises the offices and agencies that support the work of the president at the center of the executive branch of the United States federal government. The office consists of several offices and agencies, such as the White House Office (the staff working directly for and reporting to the president, including West Wing staff and the president's closest advisers), the National Security Council, and the Office of Management and Budget.
KristallnachtKristallnacht (kʁɪsˈtalnaχt) or the Night of Broken Glass, also called the November pogrom(s) (Novemberpogrome, noˈvɛm.bɐ.poˌɡʁoːmə), was a pogrom against Jews carried out by the Nazi Party's Sturmabteilung (SA) paramilitary and Schutzstaffel (SS) paramilitary forces along with some participation from the Hitler Youth and German civilians throughout Nazi Germany on 9–10 November 1938. The German authorities looked on without intervening.
Operation DownfallOperation Downfall was the proposed Allied plan for the invasion of the Japanese home islands near the end of World War II. The planned operation was canceled when Japan surrendered following the atomic bombings of Hiroshima and Nagasaki, the Soviet declaration of war, and the invasion of Manchuria. The operation had two parts: Operation Olympic and Operation Coronet. Set to begin in November 1945, Operation Olympic was intended to capture the southern third of the southernmost main Japanese island, Kyūshū, with the recently captured island of Okinawa to be used as a staging area.
Unrestricted submarine warfareUnrestricted submarine warfare is a type of naval warfare in which submarines sink merchant ships such as freighters and tankers without warning, as opposed to attacks per prize rules (also known as "cruiser rules") that call for warships to search merchantmen and place crews in "a place of safety" (for which lifeboats do not qualify, except under particular circumstances) before sinking them, unless the ship shows "persistent refusal to stop ... or active resistance to visit or search".