Neutral powers during World War II in the context of "Estonia"

Almost every country in the world participated in World War II. Most were neutral at the beginning, but relatively few nations remained neutral to the end. World War II pitted two alliances against each other, the Allies and the Axis powers. It is estimated that 74 million people died, with estimates ranging from 40 million to 90 million dead (including all genocide casualties). The main Axis powers were Nazi Germany, the Empire of Japan, and the Kingdom of Italy; while the United Kingdom, the United States, the Soviet Union and China were the "Big Four" Allied powers.

The countries involved in or affected by World War II are listed alphabetically, with a description of their role in the conflict.

The attack on Pearl Harbor was a surprise military strike by the Empire of Japan on the United States Pacific Fleet at its naval base at Pearl Harbor on Oahu, Hawaii, on December 7, 1941. At the time, the U.S. was a neutral country in World War II. The air raid on Pearl Harbor, which was launched from aircraft carriers, resulted in the U.S. declaring war on Japan the next day. The Japanese military leadership referred to the attack as the Hawaii Operation and Operation AI, and as Operation Z during its planning.

The attack on Pearl Harbor was preceded by months of negotiations between the U.S. and Japan over the future of the Pacific. Japanese demands included that the U.S. end its sanctions against Japan, cease aiding China in the Second Sino-Japanese War, and allow Japan to access the resources of the Dutch East Indies. Japan sent out its naval attack group on November 26, 1941, just prior to receiving the Hull note, which stated the U.S. desire that Japan withdraw from China and French Indochina. Isoroku Yamamoto, commander of the Japanese Combined Fleet, planned the attack as a pre-emptive strike on the Pacific Fleet, based at Pearl Harbor since 1940 in order to prevent it from interfering with Japan's planned actions in Southeast Asia. Yamamoto hoped that the strike would enable Japan to make quick territorial gains and negotiate peace. In addition to Pearl Harbor, over seven hours Japan launched coordinated attacks on the U.S.-held Philippines, Guam, and Wake Island; and on the British Empire in Malaya, Singapore, and Hong Kong.

The Turkish Straits crisis was a Cold War–era territorial conflict between the Soviet Union and Turkey. Turkey had remained officially neutral throughout most of the Second World War. After the war ended, Turkey was pressured by the Soviet government to institute joint military control of passage through the Turkish Straits, which connected the Black Sea to the Mediterranean. When the Turkish government refused, tensions in the region rose, leading to a Soviet show of force and demands for territorial concessions along the Georgia–Turkey border.

This intimidation campaign was intended to preempt American influence or naval presence in the Black Sea, as well as to weaken Turkey's government and pull it into the Soviet sphere of influence. The Straits crisis was a catalyst, along with the Greek Civil War, for the creation of the Truman Doctrine. At its climax, the dispute would motivate Turkey to turn to the United States for protection through NATO membership.

The Marshall Plan (officially the European Recovery Program, ERP) was an American initiative enacted in 1948 to provide foreign aid to Western Europe. The United States transferred $13.3 billion (equivalent to $137 billion in 2024) in economic recovery programs to Western European economies after the end of World War II in Europe. Replacing an earlier proposal for a Morgenthau Plan, it operated for four years beginning on April 3, 1948, though in 1951, the Marshall Plan was largely replaced by the Mutual Security Act. The goals of the United States were to rebuild war-torn regions, remove trade barriers, modernize industry, improve European prosperity and prevent the spread of communism. The Marshall Plan proposed the reduction of interstate barriers and the economic integration of the European continent while also encouraging an increase in productivity as well as the adoption of modern business procedures.

The Marshall Plan aid was divided among the participant states roughly on a per capita basis. A larger amount was given to the major industrial powers, as the prevailing opinion was that their resuscitation was essential for the general European revival. Somewhat more aid per capita was also directed toward the Allied nations, with less for those that had been part of the Axis or remained neutral. The largest recipient of Marshall Plan money was the United Kingdom (receiving about 26% of the total). The next highest contributions went to France (18%) and West Germany (11%). Some eighteen European countries received Plan benefits. Although offered participation, the Soviet Union refused Plan benefits and also blocked benefits to Eastern Bloc countries, such as Romania and Poland. The United States provided similar aid programs in Asia, but they were not part of the Marshall Plan.

Estonia declared neutrality at the outbreak of World War II (1939–1945), but the country was repeatedly contested, invaded and occupied, first by the Soviet Union in 1940, then by Nazi Germany in 1941, and ultimately reinvaded and reoccupied in 1944 by the Soviet Union.

Holocaust survivors are people who survived the Holocaust, defined as the persecution and attempted annihilation of the Jews by Nazi Germany and its collaborators before and during World War II in Europe and North Africa. There is no universally accepted definition of the term, and it has been applied variously to Jews who survived the war in German-occupied Europe or other Axis territories, as well as to those who fled to Allied and neutral countries before or during the war. In some cases, non-Jews who also experienced collective persecution under the Nazi regime are considered Holocaust survivors as well. The definition has evolved over time.

Survivors of the Holocaust include those persecuted civilians who were still alive in the concentration camps when they were liberated at the end of the war, or those who had either survived as partisans or had been hidden with the assistance of non-Jews, or had escaped to territories beyond the control of the Nazis before the Final Solution was implemented.

Almost every country in the world participated in World War II. Most were neutral at the beginning, but relatively few nations remained neutral to the end. World War II pitted two alliances of nations against each other, the Allies and the Axis powers. It is estimated that 74 million people died, with estimates ranging from 40 million to 90 million deaths (including all genocide casualties). The main Axis powers were Nazi Germany, the Empire of Japan, and the Kingdom of Italy; while the United Kingdom, the United States, the Soviet Union and China were the "Big Four" Allied powers.

The countries which were either involved in or affected by World War II are listed alphabetically, along with a description of the role which they played in the conflict.