We saved lives by nuking those two cities. The Japanese had armed the civilians and it was going to be literally hell to invade Japan. There would have been millions of dead in response instead of a few tens of thousands.
But we did it mostly to save the lives of our sons and daughters from dying in a war the Japanese began with a sneak attack on us while they were engaging in peace talks.
Yes, offcourse. Do you know, how many lives of children and women Islamists already got in Russia? And it's not a mythical "children and women" in Aleppo (what's the hell they doing at terrorists position?) It's a children a women, every had name and lastname. For a decades of terroristic acts inside Russia.