Leon Trotsky's roles as Russian revolutionary, foreign minister, war commissioner

The video discusses the Russian revolution that led to the Czar's murder and Trotsky's involvement in the Brest-Litovsk treaty with Germany, which resulted in Russia's humiliation during World War I. It highlights Trotsky's political decline as he was removed from his position as foreign minister and demoted to War Commissar.

How was Trotsky viewed in terms of his commitment to communism?

What position was Trotsky removed from after the treaty?