historical Use of Napalm: World War II
Napalm was used by both sides during the Second World War, and was used as a way to cause the most damage with the least amount of effort. Although going into the war America had vowed to only bomb strategic military targets and to stay away from total war bombing campaign. The British having already been suffering from Germany's V2 Rocket bombardment along with incendiary bombardment, did everything within their power to return the pain and suffering the German Luftwaffe had inflicted up them.
Historical Use of Napalm: Vietnam
Unlike that or World War II, napalm use was less used to destroy infrastructure but more to clear the jungles of enemy combatants. This form of use does not attempt to hide its purpose, but embraces it. There were other purposes for the napalm, such as burning down jungles so to allow troops to move through them with ease. A secondary effect napalm had was killing any North Vietnamese or Viet Cong that were with the jungles as well. The third effect much like during World War II, is that it struck fear in the enemy, and the constant thought of being napalmed terrorized the North Vietnamese.