Yes, essentially.
Trotsky
he crossed from enemy to heros
So that she wouldn't fall under enemy control.
Hitlers last offensive against the western allies (Russia (USSR) was Germany's primary enemy and was an Eastern enemy of Germany).
to fight facism the main opponent of comunism
Lightning war as described by ADOLF HITLER means to strike the enemy as fast as it could before the ENEMY retaliates.
It allowed the German forces to overwelm enemy forces by sheer force.
Both agreements were broken when Germany attacked protected territories.
Politically, Leon Trotsky was Stalin's greatest enemy, because after Vladimir Lenin's death, Trotsky was supposed to succeed Lenin. Stalin managed to eliminate him as a rival for power, exile him and eventually have him murdered. Militarily, Adolf Hitler was his greatest enemy, because Hitler had the German Army attack Russia in World War 2. The German Army nearly defeated the Soviet Union. Stalin might have been thrown out of power had Germany won.
During World War II, Stalin viewed Churchill as a valuable ally against Germany, but an opponent of Soviet expansion. After the war was over, Churchill was Stalin's most vocal enemy, openly speaking against Stalin's takeover of Eastern Europe.
I don't know a single event that brought about Trotsky's death. If there was one, someone who understands better than I should explain it. Stalin had him assassinated because he was a political enemy and thorn in Stalin's side.
because they were the bestest of friends and they were like brothers