Chapotraphouse

Beat the Whites with the Red Wedge (Клином красным бей белых!) is a 1919 lithographic Soviet propaganda poster by artist Lazar Markovich Lissitzky, better known as El Lissitzky.

In this dynamic composition, a vast red triangle pierces into a white circle. It symbolically refers to the Red revolutionaries penetrating and prevailing over the White Army. The white background may represent a bright future ahead of the nation.

This is an old Bolshevik propaganda poster from the Russian Civil War IIRC. I don't remember what the text translates to, but given the red wedge punching through the white circle, you can probably guess the general meaning.