Ignore the moral level of war at your own peril.

With modern weapons no aggression war can be won!
Israel loses with every attack.
But the price, that the palestinians pay, is horrible!
No land, no shelter, no medical aid, no water, starving. They live their whole life in refugee camps or behind fences and walls and can't sleep any night without fear. And every few month or years the Israel army attacks them and shot some children or their parents. It's now the 3rd generation, that lives in war.