Historical clue formulations

• Incendiary jelly used in the Vietnam War — 2021-04-13
• Incendiary bomb material — 2021-03-15
• Incendiary weapon used in the Vietnam War — 2018-11-05
• Flamethrower option — 2017-06-16
• Incendiary weapon — 2017-01-03
• Vietnam War weapon — 2014-09-01
• Dresden decimator of 1945 — 2013-10-05
• Incendiary fuel in "Apocalypse Now" — 2011-05-17
• Smell in "Apocalypse Now" — 2004-06-12
• An incendiary — 2001-01-13
• Flamethrower fuel — 2000-07-12
• Incendiary stuff — 1999-12-01
• Flamethrower fuel — 1998-07-22
• It's incendiary — 1995-12-31