George Washington was fighting a war with two enemies, the British and a disease smallpox.  Washington had the disease when younger, so knew that its spread amongst the troops would be devastating to the American cause.

Washington made the bold move to inoculate all the American troops who had not had the virus.  This inoculation process was new and dangerous.  As it turns out, the bold move was successful and the American troops stayed healthy enough to continue to fight.

Read more about this unique moment in time via two articles below.  The first from www.history.com and the second from www.mountvernon.org.  If you do not subscribe to these please consider, they have plenty of Revolutionary War content to fine tune your history knowledge.

https://www.history.com/news/smallpox-george-washington-revolutionary-war

https://www.mountvernon.org/library/digitalhistory/digital-encyclopedia/article/smallpox/

Enjoy!