He served in the attack on the lines of Wissembourg, marched from there to the army of Dauphiné and took part in the capture of Soncino and Montmélian.

In 1709 he was in the French army of Flanders and had his left hand crushed by a shrapnel from a bomb during the Siege of Tournai.

He took part in the surrender of Speyer, Worms and Kaiserslautern, as well as the siege of Landau and capture of Freiburg im Breisgau in 1713.

[1] During the War of the Polish Succession, Laval was in the Army of the Rhine and was present at the Siege of Philippsburg.

In the War of the Austrian Succession, he commanded forces in Lorraine in 1744, and obtained the government of Béthune on 20 September that year.