william the conqueror was norman and had a viking descent if i recall correctly.
the french truly haven't been successful in their military history.
Gallic Wars-don't know much about these, but i know the french lost.
100 years war- the french were massacred until henry VI came to the throne in england.
french wars of religion- fought to a standstill against the huguenots, no clear victor
30 years war- french not truly involved in this war, but still managed to get attacked. :/
spanish succession- got their asses whipped by the english.
king williams war-
napoleonic wars- as was already stated, napoleon was basically an italian. not that the italians have much of a military record themselves.
franco-prussian war- the prussians were inside paris in a matter of weeks.
wwI- stalemate
wwII- aside from the resistance, the french basically welcomed the nazis in.
indochina campaign-