An attempt at humour, oui or non?
You are obviously trying to find some history on the Tricolor and got your colours muddled, or you are inferring that France adopted the International Flag of Surrender during both World Wars.
During the period of the Ancien R�gime, in the 18th century, the royal standard of France became a plain white flag, sometimes covered in fleur-de-lis when in the presence of the French King or bearing the ensigns of the Order of the Holy Spirit. The white color was also used as a symbol of military command, by the commanding officer of a French army.
During the French Revolution, in 1794, the Tricolor was adopted as the official flag of France The white flag quickly became a symbol of French royalists. During the Bourbon Restoration period in France, it replaced the Tricolor, seen as a symbol of regicide. The French troops fighting in the American War of Independence fought under the white flag. It was finally abandoned in 1830, with the July Revolution.