Stalin's key decisions during world war 2

In 1939, on the eve of World War II, Joseph Stalin and German dictator Adolf Hitler (1889-1945) signed the German-Soviet Nonaggression Pact. Stalin then proceeded to annex parts of Poland and Romania, as well as the Baltic states of Estonia, Latvia and Lithuania. He also launched an invasion of Finland

Explanation:

lincoln presided over the union victory in the american civil war, which dominated his presidency. a former whig, lincoln ran on a political platform opposed to the expansion of slavery in the territories. his election served as the immediate impetus for the outbreak of the american civil war.

the main concern with the first draft of the articles of confederation was too much power in the state governments.