What does the article say on why andrew johnson was impeached?

The articles charged Johnson with: Dismissing Edwin Stanton from office after the Senate had voted not to concur with his dismissal and had ordered him reinstated. Appointing Thomas Secretary of War ad interim despite the lack of vacancy in the office, since the dismissal of Stanton had been invalid.

Explanation:

the treaty of brest-litovsk was a peace treaty signed on 3 march 1918 between the new bolshevik government of russia and the central powers (german empire, austria-hungary, bulgaria, and the ottoman empire), that ended russia's participation in world war i.