Question: When was Eritrea annexed by the largest troop contributor to the organization that had the country that dominated eastern Europe after world war II as an important founding member?

<P0-S0> The Soviet Union suffered greatly in the war, losing around 27 million people. <P0-S1> Approximately 2.8 million Soviet POWs died of starvation, mistreatment, or executions in just eight months of 1941 -- 42. <P0-S2> During the war, the Soviet Union together with the United States, the United Kingdom and China were considered as the Big Four of Allied powers in World War II and later became the Four Policemen which was the foundation of the United Nations Security Council. <P0-S3> It emerged as a superpower in the post-war period. <P0-S4> Once denied diplomatic recognition by the Western world, the Soviet Union had official relations with practically every nation by the late 1940s. <P0-S5> A member of the United Nations at its foundation in 1945, the Soviet Union became one of the five permanent members of the United Nations Security Council, which gave it the right to veto any of its resolutions. <SEP> <P1-S0> The Aftermath of World War II was the beginning of an era defined by the decline of all great powers except for the Soviet Union and the United States, and the simultaneous rise of two superpowers: the Soviet Union (USSR) and the United States of America (USA). <P1-S1> Allies during World War II, the USA and the USSR became competitors on the world stage and engaged in the Cold War, so called because it never resulted in overt, declared hot war between the two powers but was instead characterized by espionage, political subversion and proxy wars. <P1-S2> Western Europe and Japan were rebuilt through the American Marshall Plan whereas Central and Eastern Europe fell under the Soviet sphere of influence and eventually an ``Iron Curtain ''. <P1-S3> Europe was divided into a US - led Western Bloc and a Soviet - led Eastern Bloc. <P1-S4> Internationally, alliances with the two blocs gradually shifted, with some nations trying to stay out of the Cold War through the Non-Aligned Movement. <P1-S5> The Cold War also saw a nuclear arms race between the two superpowers; part of the reason that the Cold War never became a`` hot'' war was that the Soviet Union and the United States had nuclear deterrents against each other, leading to a mutually assured destruction standoff. <SEP> <P2-S0> As of 29 February 2016, 124 countries were contributing a total of 105,314 personnel in Peacekeeping Operations, with Ethiopia leading the tally (8,324), followed by India (7,695) and Bangladesh (7,525). <P2-S1> In June 2013. <P2-S2> Pakistan contributed the highest number overall with 8,186 personnel, followed by India (7,878), Bangladesh (7,799), Ethiopia (6,502), Rwanda (4,686), Nigeria (4,684), Nepal (4,495), Jordan (3,374), Ghana (2,859), and Egypt (2,750). <P2-S3> As of 28 February 2015, 120 countries were contributing a total of 104,928 personnel in Peacekeeping Operations, with Bangladesh leading the tally (9446). <P2-S4> As of March 2008, in addition to military and police personnel, 5,187 international civilian personnel, 2,031 UN Volunteers and 12,036 local civilian personnel worked in UN peacekeeping missions. <SEP> <P3-S0> israel has one of the highest ratios of defense spending to gdp of all developed countries, only topped by oman and saudi arabia. <P3-S1> in 1984, for example, the country spent 24% of its gdp on defense. <P3-S2> by 2006, that figure had dropped to 7.3%. <P3-S3> israel is one of the world's largest arms exporters, and was ranked fourth in the world for weapons exports in 2007. the majority of israel's arms exports are unreported for security reasons. <P3-S4> since 1967, the united states has been a particularly notable foreign contributor of military aid to israel: the us is expected to provide the country with $3.15 billion per year from 2013 to 2018. israel is consistently rated low in the global peace index, ranking 148th out of 162 nations for peacefulness in 2015. <SEP> <P4-S0> the interwar period was also marked by a radical change in the international order, away from the balance of power that had dominated pre–world war i europe. <P4-S1> one main institution that was meant to bring stability was the league of nations, which was created after the first world war with the intention of maintaining world security and peace and encouraging economic growth between member countries. <P4-S2> the league was undermined by the bellicosity of nazi germany, imperial japan, the soviet union, and mussolini's italy, and by the non-participation of the united states, leading many to question its effectiveness and legitimacy. <SEP> <P5-S0> During the Middle Ages, the Eritrea region was known as Medri Bahri ("sea-land"). <P5-S1> The name Eritrea is derived from the ancient Greek name for Red Sea (Ἐρυθρὰ Θάλασσα Erythra Thalassa, based on the adjective ἐρυθρός erythros "red"). <P5-S2> It was first formally adopted in 1890, with the formation of Italian Eritrea (Colonia Eritrea). <P5-S3> The territory became the Eritrea Governorate within Italian East Africa in 1936. <P5-S4> Eritrea was annexed by Ethiopia in 1953 (nominally within a federation until 1962) and an Eritrean Liberation Front formed in 1960. <P5-S5> Eritrea gained independence following the 1993 referendum, and the name of the new state was defined as State of Eritrea in the 1997 constitution. <P5-S6> [citation needed]