Who were the only two U.S. Presidents to command military troops in the field while in office?

I was reading a biographical article on President George Washington. The article said that Washington (and Congress) put an excise tax into effect on alcohol which sparked protests and riots (known as the Whiskey Rebellion). The U.S. Army, at the time, was too small to send into the rebellious areas. Therefore, it... show more I was reading a biographical article on President George Washington. The article said that Washington (and Congress) put an excise tax into effect on alcohol which sparked protests and riots (known as the Whiskey Rebellion). The U.S. Army, at the time, was too small to send into the rebellious areas. Therefore, it was brought about that each state could have Malitias. After the Malitias were formed, President Washington marched with the forces into the rebellious areas. The article then stated that Washington was one of only two U.S. Presidents to command military troops in the field while in office. Who was the other President to do this??
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