A world war 2 sketch

Although i am a not great artist and my most of the time is spent on my medical profession but still i want to share my two sketches which i made them in previous year.

These are world war 2 sketches.

Nazi Germany invasion of Poland in 1939 which led to start of ww2

Ribbentrop - Molotov non aggression pact signed between Nazi Germany and Russia in 1939