PS
A bit of cut-and-paste on chemical weapons - as used by Saddam Hussain and the Israelis.
"As an incendiary weapon, WP burns fiercely and can set cloth, fuel, ammunition and other combustibles on fire. Since WWII, it has been extensively used as a weapon, capable of causing serious burns or death.[2] White phosphorus is used in bombs, artillery, and mortars, short-range missiles which burst into burning flakes of phosphorus upon impact. White phosphorus is commonly referred to in military jargon as "WP", and the slang term "Willy/Willie Pete/Peter" (dating from World War I) is still commonly used by infantry and artillery servicemen.[citation needed]
WP is also a highly efficient smoke producing agent, burning quickly and causing an instant bank of smoke. As a result, smoke producing WP munitions are very common, particularly as smoke grenades for infantry, loaded in defensive grenade dischargers on tanks and other armored vehicles, or as part of the ammunition allotment for artillery or mortars. These create smokescreens to mask movement from the enemy, or to mask his fire."
Jim Carroll