the Red Cross and the Hague Conventions of 1899 and 1907. Following the catastrophic loss of life in World War I, the Paris Peace Conference established the League of Nations to maintain harmony between the nations. This organization successfully resolved some territorial disputes and created international structures for areas such as postal mail, aviation and opium control, some of which would later be absorbed into the UN. However, the League lacked representation for colonial peoples (then half the world's population) and significant participation from several major powers, including the US, the USSR, Germany and Japan; it failed to act against the 1931 Japanese invasion of Manchuria, the Second Italo-Ethiopian War in 1935, the 1937 Japanese occupation of China, and Nazi expansions under Adolf Hitler that escalated into World War II. On New Year's Day 1942, President Roosevelt, Prime Minister Churchill, Maxim Litvinov, of the USSR, and T. V. Soong, of the Republic of China, signed a short document, based on the Atlantic Charter and the London Declaration, which later came to be known as the United Nations Declaration. The next day the representatives of twenty-two other nations added their signatures." The term United Nations was first officially used when 26 governments signed this Declaration. By 1 March 1945, 21 additional states had signed. "Four Powers" was coined to refer to the four major Allied countries: the United States, the United Kingdom, the Soviet Union and the Republic of China. and became the foundation of an executive branch of the United Nations, the Security Council. Following the 1943 Moscow Conference and Tehran Conference, in mid-1944, the delegations from the Allied "Big Four", the Soviet Union, the UK, the US and the Republic of China, met for the Dumbarton Oaks Conference in Washington, D.C. to negotiate the UN's structure, and the composition of the UN Security Council quickly became the dominant issue. France, the Republic of China, the Soviet Union, the UK and US were selected as permanent members of the Security Council; the US attempted to add Brazil as a sixth member but was opposed by the heads of the Soviet and British delegations. The most contentious issue at Dumbarton and in successive talks proved to be the veto rights of permanent members. The Soviet delegation argued that each nation should have an absolute veto that could block matters from even being discussed, while the British argued that nations should not