We invent the time machine, go back to fight in WWII, and then in 1945 the three of us who survive the war are yelling at our Lieutenant "THE US HAS NO MORE NUKES! LET'S FUCKING GO! WE CAN CRUSH PATTON RIGHT NOW? WHAT ARE YOU A FUCKING REVISIONIST?" right up until we're shot for being annoying.
1930s USSR so I can tell them to keep going after they reach Berlin and also strengthen relations with China's then fledging Maoist movement.
We invent the time machine, go back to fight in WWII, and then in 1945 the three of us who survive the war are yelling at our Lieutenant "THE US HAS NO MORE NUKES! LET'S FUCKING GO! WE CAN CRUSH PATTON RIGHT NOW? WHAT ARE YOU A FUCKING REVISIONIST?" right up until we're shot for being annoying.
Maybe you'll get shot but I'm built different