50,000 US losses to over 1.2 million hostiles slaughtered in their own country during a war with faulty equipment, no reason to be there, and zero morale. We did okay all things considered, Vietnam even admitted they were close to surrendering and then we just gave up. But it was a military victory in the sense that we learned valuable lessons and greatly advanced our weapons technology and training after that war.
Interesting story. Claims made that China intentionally released the virus. Take from it what you will.
Derpibooru costs over $25 a day to operate - help support us financially!