Solomon arranges some of the most crucial loans of the war effort and, working in concert with Robert Morris – the Revolution’s chief banker – becomes central to the colonials’ eventual victory. When George Washington sees his one-in-a-million opportunity to trap and destroy Lord Cornwallis at Yorktown, it is money that is wanting and Solomon comes through. Washington can’t move his army into siege position to capitalize on Cornwallis’s historic error because an army on the march must be fed. Robert Morris turns once again to Solomon the broker, who comes up with the vital $20,000 when the Treasury itself is empty. Within a day, the French and American armies, flush with the funds necessary, make their way to Yorktown and surround the city. Cornwallis is cut off from supply lines and promptly gives up.
Source: The Broker Who Saved America