There are several books on interviews from eastern front generals about the Russian War. Also a few on the intelligence sources we gained from Paperclip.
Bit by that time the Reds were on control of Washington, so the sources got burned quickly.
There are a few books on how the Russians also wondered if it was worth the effort. Yes, we got to space quicker, but Nazi influence on both sides of the Irin Curtain was large
Thanks for your information. I was born in 1947, and lived through the air raid drills in school, and being told every day we could be destroyed by nuclear bombs. Back in the 80’s and 90’s, I was researching the Civil War, and some of the units that served. It wasn’t until I retired in 2003, that I expanded my interest into other historical periods...medieval England, WWI and WWII. I managed to get to Churchill’s War Rooms, and the D-Day beaches in Normandy in 2006. It’s something I will never forget.