J14P11 MSQn7(b) Why did mistrust between the USSR and the USA increase in 1945?

Level 0 No evidence submitted or response does not address the question [0] 

Level 1 General answer lacking specific contextual knowledge [1] e.g. 
‘They wanted different things.’ 

Level 2 Identifies AND/OR describes reasons [2–3] 
(One mark for each point) 
e.g. 
‘The common enemy was defeated.’ 
‘It increased with the death of Roosevelt.’ 
‘It increased because of the successful testing and use of an atomic bomb by the USA.’ 
‘There were disagreements over Poland.’ 
‘It was capitalism versus communism.’ 
‘Truman became US President.’ 
‘There were disagreements over what to do with Germany.’ 

Level 3 Explains reasons [4–7] 
(One mark for an explanation, additional mark for full explanation.) e.g. 
‘The USA was suspicious of Soviet intentions in eastern Europe. Stalin had removed non-Communist leaders in Poland replacing them with Communists. The Soviet controlled government at Lublin, set up in 1944, continued to run the country once the war ended.’ 
‘Truman was highly suspicious of Stalin’s motives. He was much less trusting than Roosevelt had been. Stalin refused to reduce the size of the Red Army. In eastern Europe he believed Stalin intended to set up USSR controlled buffer states.’