Whoa there, Sonny. Hope you're joking or else referring to the SOME of the European GOVERNMENTS, not the individual citizens, for instance the French Resistance, the Polish Resistance (in WW2 anyway; I confess my knowledge of WW2 is a little better than that of WW1). Good grief, there was a Polish Airforce operation called Operation Anthropoid, a WWII mission to assassinate SS General Reinhard Heydrich, the main architect behind the Final Solution and the Reich's third in command after Hitler and Himmler. Even a great movie based on the subject:
Even if you could prove to me that every single European during the 2 WW's was a coward, I suspect there were at least some right here in the USA; I remember hearing in high sch. history class about all the protests going on here in the usa against us entering WW2.