Hamas political leader Khaled Meshal: “But we admit that we have a problem. We do not have sophisticated weapons. We do not have the weapons available to our enemy … so aiming is difficult. We do promise you, though, that we will try in the future and we will warn people … We have given warnings to Israeli civilians. We promise that if we get more precise weapons, we will only target military targets."

(Read the article here.)

A couple of years ago, the military historian Martin van Creveld told me years that nobody and nothing have done more to promote peace than the atomic bomb. (Not an entirely original opinion but still.)
Perhaps better weapons will enhance the chance of peace as well.
The conventional thinking that an arms embargo will lead to less aggression may be just another mistake.