Why might military strategists choose to use bats as incendiary weapons?

To drop the incendiary charge(bombs) over the target area and create an inferno for the adversaries.

Explanation:

Men have been attempting for ages to use the birds as incendiary weapons after looking at the majesty of the birds in flight. They were thought to be charged with some incendiary material tied to their legs into bomb casings in order to be released over the targets. The idea behind using them was that even if they were caught, they could fly to their respective walls and sleep until the matter gets resolved. They were considered to be the effective way to conquer the enemies without any threat as they could detonate the charge so impactfully and conveniently.

well the central charater is kaneki so kaneki but in tokyo ghoul re kaneki has a new persona so i guess his new persona trying to be stronger

c. to depict the cunningness of the federal soldiers