French Army

A long time ago, Britain and France were at war. During
one battle, the French captured an English major. Taking
the major to their headquarters, the French general began
to question him. The French general asked, "Why do you
English officers all wear red coats? Don't you know the
red material makes you easier targets for us to shoot?"

In his bland English way, the major informed the general
that the reason--English officers wear red coats is so
that if they are shot, the blood won't show and the men
they are leading won't panic.

And that is why from that day to now all French Army
officers wear brown pants.

Source: 
http://laffaday.gophercentral.com