This is also the result of the failure of the third most expensive technical project of the war. The Norden sight. At the outset of the war it was believed that

This is also the result of the failure of the third most expensive technical project of the war. The Norden sight. At the outset of the war it was believed that precision bombing from the air was possible. A vast sum was spent making a sight to allow accurate targeting to that end. It simply didn’t work and the result was a return to area bombing and the massive civilian casualties that resulted in. Even worse the bombing did almost nothing to lessen enemy output. In fact over the war Germany and Japan managed to constantly increase their output of weapons for various reasons. One being that having a large industrial base pre war meant they could always sift production. Ie at the start you are making bullets in a bullet factory. At the end you are making bullets in what was a sewing machine factory. We still like to believe accurate weapons make for “clean” conflicts but we never seem able to resist area bombing.