Pedzisa mutsara unotevera: Pakutanga kweHondo Yenyika II muna September 1939, Kopp akabatana neFrench Foreign Legion semukuru uye akarwa muHondo yeFrance muna May-June 1940, achingopona Blitzkrieg iyo vazhinji vehama dzake vasina. Kopp akakuvadzwa zvakakomba ndokuitwa musungwa asi akatiza muchipatara chemauto uye akakwanisa kudzokera kuchikwata chake, zvino chinonzi
uto rakakundwa, kunze kweMarseilles muna August. Mwedzi wakatevera wacho, Kopp akaendeswa kumuzinda weForeign Legion muAlgeria, kwaakaremara kubva muchiuto uye akapiwa mari yepenjeni ye80%.