I guess around the same time the nukes on Hiroshima and Nagasaki were dropped, The USSR launched a huge invasion in Northern Japan. I hear that this is the real reason Japan surrendered during WW2, and the reason we think it was because of the nukes is because of the pro-American society we live in. But I also hear it is a common WW2 fallacy such as that the allies bombed Dresden after the war ended just for revenge.
Anyone have any thoughts?
This question gets asked here pretty frequently; this section of our FAQ may be of some interest to you. The tl;dr is: What was primarily responsible for the Japanese capitulation is one of those questions where reasonable people can look at the same evidence and draw different conclusions; particularly in recent years with the opening of (formerly) Soviet archives, we have better knowledge of how the Soviet declaration of war on Japan affected leadership decisions.
These threads in particular may be of interest: