MILITARY INTELLIGENCE

Mark 77: New, improved and more lethal son of napalm

The Pentagon no longer officially uses the brand-name 'Napalm', but a similar sticky, inflammable substance known as 'fuel-gel mixture', contained in weapons called Mark-77 fire bombs, was dropped on Iraqi troops near the Iraq-Kuwait border at the start of the war.
'I can confirm that Mark-77 fire bombs were used in that general area,' Colonel Mike Daily of the US Marine Corps said.
Colonel Daily said that US stocks of Vietnam-era napalm had been phased out, but that the fuel-gel mixture in the Mark-77s had 'similar destructive characteristics.'
On March 22nd, correspondent Lindsay Murdoch, who was travelling with the US Marines, had reported that napalm was used in an attack on Iraqi troops at Safwan Hill, near the Kuwait border. Murdoch's account was based on statements by two US Marine Corps officers on the ground.
Lieutenant-Commander Jeff A. Davis, USN, Office of the Assistant Secretary for Defense (Public Affairs) had called Murdoch's story "patently false".
"The US took napalm out of service in the 1970s. We completed the destruction of our last batch of napalm on April 4, 2001, and no longer maintain any stocks of napalm," Commander Davis said. He was apparently referring to Vietnam-era Napalm-B, which consisted of inflammable fuel thickened with polystyrene and benzene.
The inflammable fuel in Mark-77 fire bombs is thickened with slightly different chemicals, and is believed to contain oxidizers, which make it harder to extinguish than Napalm-B.

Neither weapon technically contains napalm. The chemical mixture that became known as 'napalm' - a combination of naphthalene and palmitate - was used only in the earliest versions of the weapon. Napalm was banned by United Nations convention in 1980, but the US never signed the agreement. Use of Mark-77 fire bombs is considered legal by the US military.