It also depends on the theatre, the others all focus on Germany so "the allied forces took Berlin" or "Hitler shot himself" would potentially be more fitting, especially given Japan didn't de jure end the war until 1956

The war didn't even end after the second atomic bomb was dropped on Nagasaki on August 9th 1945. Japan didn't even formally cease hostilities until August 15th (and sporadic combat went on even after that) and they didn't formally surrender until September 2nd. The answer given in the cartoon is literally incorrect.

The more general "the nukes stopped Japan" is also arguably not accurate. Japan was beaten long before that point, and the Soviet declaration of war and invasion of Manchuria on August 8th (three months to the day after Germany's surrender as Stalin had promised) had as much of a proximate effect on ending the war as did the atomic bombings - which Japan's rulers didn't have good information about anyway, and which didn't stand out as being all that much more destructive than the conventional bombing attacks that the US had been carrying out for half a year at that point.

Walter enters the chat 😁

That's how I feel is the end.