Question: When was Eritrea annexed by country contributing the most to the peace keeping mission of the organization with the US and the inventor of first satellite as important members?

<P0-S0> football and cycling are the most popular sports in eritrea. <P0-S1> in recent years, eritrean athletes have also seen increasing success in the international arena. <P0-S2> zersenay tadese, an eritrean athlete, currently holds the world record in half marathon distance running. <P0-S3> the tour of eritrea, a multi-stage international cycling event, is held annually throughout the country. <P0-S4> the eritrea national cycling team has experienced a lot of success, winning the continental cycling championship several years in a row. <P0-S5> six eritrean riders have been signed to international cycling teams, including natnael berhane and daniel teklehaimanot. <P0-S6> berhane was named african sportsman of the year in 2013, ahead of footballers yaya touré and didier drogba, while teklehaimanot became the first eritrean to ride the vuelta a españa in 2012. in 2015 teklehaimanot won the king of the mountains classification in the critérium du dauphine. <P0-S7> teklehaimanot and fellow eritrean merhawi kudus became the first black african riders to compete in the tour de france when they were selected by the mtn–qhubeka team for the 2015 edition of the race, where, on 9 july, teklehaimanot became the first african rider to wear the polkadot jersey. <SEP> <P1-S0> In 1957 the Soviet Union launched the world's first artificial satellite, Sputnik 1. <P1-S1> Since then, about 6,600 satellites from more than 40 countries have been launched. <P1-S2> According to a 2013 estimate, 3,600 remained in orbit. <P1-S3> Of those, about 1,000 were operational; while the rest have lived out their useful lives and become space debris. <P1-S4> Approximately 500 operational satellites are in low - Earth orbit, 50 are in medium - Earth orbit (at 20,000 km), and the rest are in geostationary orbit (at 36,000 km). <P1-S5> A few large satellites have been launched in parts and assembled in orbit. <P1-S6> Over a dozen space probes have been placed into orbit around other bodies and become artificial satellites to the Moon, Mercury, Venus, Mars, Jupiter, Saturn, a few asteroids, a comet and the Sun. <SEP> <P2-S0> andover earth station was one of the first satellite earth stations, located at andover in the us state of maine. <P2-S1> it was built by at&t in 1961 to communicate with the telstar 1 satellite, the first direct relay communications satellite. <P2-S2> it provided the first experimental satellite telephone and television service between north america and europe. <P2-S3> it was also used with the relay satellite. <P2-S4> the station was dismantled in the 1990s. <SEP> <P3-S0> The Soviet Union suffered greatly in the war, losing around 27 million people. <P3-S1> Approximately 2.8 million Soviet POWs died of starvation, mistreatment, or executions in just eight months of 1941 -- 42. <P3-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. <P3-S3> It emerged as a superpower in the post-war period. <P3-S4> Once denied diplomatic recognition by the Western world, the Soviet Union had official relations with practically every nation by the late 1940s. <P3-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> <P4-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). <P4-S1> In June 2013. <P4-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). <P4-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). <P4-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> <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]