D. The Battle of Verdun was launched by the Central powers, while the Battle of the Somme was launched by the Allied powers.
Explanation:
The battle of Verdun was launched by Germany in 1916. The German attacked the underground fortresses surrounding the French city of Verdun. Erich von Falkenhayn was responsible for the attack. The Somme's battle was an offensive attack launched in 1916 by the British. The war was fought against the German Empire by the British Empire armies and the French Third Republic. The reason for the war was to take the pressure off of French at Verdun
