In the Fourth Coalition War , Klein fought in the Grande Armée under the command of Joachim Murat . In the War of the Fourth Coalition , Klein fought in the Grande Armée under command of Joachim Murat .
Dalam Perang Gabungan Keempat, Klein bertempur di Grande Arme di bawah arahan Joachim Murat. Dalam Perang Gabungan Keempat, Klein bertempur di Grande Arme di bawah pemerintahan Joachim Murat.