"Jack Linthicum" wrote
"Keith Willshaw" wrote

Incorrect, the trenches followed a zig zag pattern to avoid
an enemy being able to fire along long stretches. At most you
could afect a short stretch

Napalm is a fluid, it flows into just those parts of trench-systems
that you describe, it was used first against the Japanese dug into
caves on Tinian, in addition to the burning--it sticks to your
skin--it sucks the oxygen out of the air forcing men to leave the
trenches or die.

And lets not forget that those WWI trench systems used a lot of wood
in their construction, which would burn fiercely once hit with a napalm
bomb.