Me asap im being timed
why did the soviet union refuse to end its occupation of the countries of eastern europe that it "conquered" during world war ii?
select one:
a. soviet leaders wanted to maintain a buffer between russia and the west, fearing intervention by capitalist countries.
b. eastern european countries wanted the soviet army to stay and provide them with military protection
c. soviet generals were reluctant to leave eastern europe because they had built strong military bases there.
d. stalin believed that a retreat from eastern europe might be viewed by his citizens as a sign of weakness.

greatest strain of all within the wartime coalition was with the Soviet Union. Although Roosevelt had ended the long period of nonrecognition in 1933, close ties had failed to develop. Russian refusal to pay prerevolutionary debts, together with continued Soviet support of domestic communist activity in the United States in the 1930s, intensified American distaste for Stalin's regime. great Russian purge trials and the temporary Nazi-Soviet alliance from 1939 to 1941, along with deep-seated cultural and ideological differences, made wartime cooperation difficult. Roosevelt tried hard to break down the old hostility and establish a more cordial relationship with Russia during the war. Even before Pearl Harbor, he extended Lend-Lease aid to Russia, and aft er American entry into the war, this economic assistance grew rapidly, limited only by the difficulty of delivering the supplies. Eager to keep Russia in the war, the president promised a visiting Russian diplomat in May 1942 that the United States would create a second front in Europe by the end of

that year a pledge he could not fulfill.

Explanation:

1960: wilma rudolph was the first woman to win three olympic gold medals in track and field at one olympic games. she was an american sprinter from tennessee, she was acclaimed the fastest woman in the world. she was among the most visible black women in america and abroad. she became a role model for black and female athletes. she was also known as a civil rights and women right's pioneer.

1973: billy jean king is an american former number one tennis player. she represented the united states in the federal cup and the wightman cup. for three years she was the usa's captain in the federation cup. she defends gender equality and has been a pioneer for equal and social justice. at the age of 29, she won "the battle of sexes" tennis match against the 55 year old bobby riggs. she was also the founder of women's tennis association and the women's sports foundation.  

1983: tamara mckinney becomes the first american female skier to win the alpine world cup overall championship top. she was the only american to hold that title for a quarter century until 2008.

1992: manon rhéaume, from canada,   becomes the only woman to start in a national hockey league game in an exhibition game for the tampa bay lightning . she played on the canada women's national ice hockey team winning gold medals in 1992 and 1994. and silver medals in 1998. manon marked the first time a woman appeared in a regular season professional game with her first appearance against the salt lake golden eagles.

2013: serena williams won 78 of 82 matches at the age of 31. she is an american professional tennis player. she reached the number 1 ranking for the first time on july, 8, 2002. at the age of 16, she played against karsten braasch the battle of sexes. she was the highest paid female athlete in 2016. she is a unicef ambassador .