Complex sentence: After the German invasion of France, in 1940, his mother was killed by the Nazis, and his family interned in the camp of Drancy, last stop before deportation, in 1943.
Split into simpler sentences: After the German invasion of France, in 1940, his mother was killed by the Nazis. However, his family was interned in the camp of Drancy, last stop before deportation, in 1943.