How does Strawser respond to the objection that the use of drones will lower the threshold for going to war?

Question $3$ Answer

a$.$

By reminding the reader that because his main conclusion only applies to legitimate military operations in just wars, it does not justify any decision to start an unjust war

b$.$

By comparing that objection to an argument that says that militaries should stop using bulletproof vests as a way of raising the threshold for going to war.

c$.$

By denying that the use of drones will lower the threshold for going to war.

d$.$

By arguing that even if the use of drones does lead to a few more unjust wars, the fact that it reduces civilian casualties in the wars that are fought makes the trade$-$off worthwhile.