Yup, that's true... Such as this: Go to google, type in "french military victories", and press I'm feeling lucky. It takes you to a french parody site, suggesting that you meant "french military defeats".
http://www.albinoblacksheep.com/text/france.html
About the only think it leaves out is the American Civil War, where France was initially rooting for the Confederacy. The later reverted to type: switch sides after the battle is won and take credit for the victory. (Jokes aside, the UK performed similarly that time.)
See, e.g., http://www.civilwarhome.com/europeandcivilwar.htm