Earlier quoted context omitted.
At beginning of WWW2, USSR had pretty good position: thousands of tanks, millions of tons of ammunition, million army, powerful ally (Germany). USSR attacked Finland at winter to prevent invasion of France & Britain via Norway and Finland to attack Leningrad. It was risky move, lot of soldiers of Red Army died because of cold, but USSR won. At beginning 1941, USSR waited for beginning of Britain bombing of Baku, to s…
A non-aggression pact is not an alliance, nor does it make an ally. Hitler fundamentally hated the communists, but was also desperate to prevent the USSR from joining the war. Stalin also fundamentally hated the Nazis.
Jointly dividing Poland and having a military parade there is not an alliance?
Providing secret base for U-boats - just a pact, not an alliance?