Casimir Pulaski - Wikipedia

On September 15, 1777, George Washington on authorization of Congress appoints Casimir Pulaski Brigadier General in the Continental Army cavalry. From the article:

"Born in Warsaw and following in his father's footsteps, he became interested in politics at an early age and soon became involved in the military and the revolutionary affairs in Poland (the Polish–Lithuanian Commonwealth). Pulaski was one of the leading military commanders for the Bar Confederation and fought against Russian domination of the Commonwealth. When this uprising failed, he was driven into exile. Following a recommendation by Benjamin Franklin, Pulaski immigrated to North America to help in the cause of the American Revolutionary War. He distinguished himself throughout the revolution, most notably when he saved the life of George Washington. Pulaski became a general in the Continental Army, created the Pulaski Cavalry Legion and reformed the American cavalry as a whole. At the Battle of Savannah, while leading a daring charge against British forces, he was gravely wounded, and died shortly thereafter.

Pulaski is remembered as a hero who fought for independence and freedom in both Poland and the United States. Numerous places and events are named in his honor, and he is commemorated by many works of art. Pulaski is one of only eight people to be awarded honorary United States citizenship. He never married and had no descendants. Despite his fame, there have been uncertainties and controversies surrounding both his place and date of birth and burial."