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William Penn Annex East in Philadelphia in Philadelphia County, Pennsylvania — The American Northeast (Mid-Atlantic)
 

Commander in Chief

— The Executive Branch —

 
 
Commander in Chief Marker image. Click for full size.
Photographed by Devry Becker Jones (CC0), July 25, 2026
1. Commander in Chief Marker
Inscription.
"The President shall be Commander in Chief of the Army and Navy of the United States, and of the Militia of the several States…" Article II, Section 2

The Constitution authorizes the president to oversee the operations and deployment of the United States armed forces during times of peace. The president directs strategy and decides objectives once Congress has declared war. The commander in chief clause ensures civilian control of the military and prevents a military dictatorship or coup from overthrowing the government.

The president's war power is checked by Congress, which has the constitutional authority to declare war and appropriate money for military operations. Although there was no formal declaration of war during Washington's and Adams' presidencies, Washington invoked his power as commander in chief during the Whiskey Rebellion, and Adams authorized naval action against France as president.

In 1791, Congress imposed a tax on distilled whiskey to pay off Revolutionary War debts. This tax proved unpopular with western Pennsylvania farmers who relied on the sale of corn, rye, and grain for their livelihood.
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In 1794, an angry mob of farmers marched on Pittsburgh to protest the taax and intimidate federal officials. After sending peace commissioners to confront the protestors, Washington, as commander in chief, personally accompanied a multi-state militia force to suppress the rebellion. By the time they reached Pittsburgh, the resistance had dispersed, and no violence ensued.

[Caption:]
On October 16, 1794, President George Washington arrived to review the troops at Fort Cumberland, Maryland. Painting attributed to Frederick Kemmelmeyer after 1795.
Courtesy of Metropolitan Museum of Art.

 
Erected 2026 by National Park Service, U.S. Department of the Interior.
 
Topics and series. This historical marker is listed in these topic lists: Government & PoliticsLaw EnforcementMilitary. In addition, it is included in the Former U.S. Presidents: #01 George Washington, the Former U.S. Presidents: #02 John Adams, and the Whiskey Rebellion series lists. A significant historical date for this entry is October 16, 1794.
 
Location. 39° 57.03′ N, 75° 9.001′ W. Marker is in Philadelphia, Pennsylvania, in Philadelphia County. It is in William Penn
Markers on Display at Independence National Historical Park image. Click for full size.
Photographed by Devry Becker Jones (CC0), July 25, 2026
2. Markers on Display at Independence National Historical Park
Annex East. It is at the intersection of South 6th Street (County Road 2005) and Market Street (County Road 2004), on the left when traveling south on South 6th Street. Touch for map. Marker is at or near this postal address: 598 Market St, Philadelphia PA 19106, United States of America. Touch for directions.

Regionally, this marker is in Southeast Pennsylvania. It is also in the American Northeast and in the Mid-Atlantic. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the Haudenosaunee (Iroquois) Confederacy, New Netherland, and one of the original Thirteen Colonies.

Other nearby markers. At least 6 other markers are within walking distance of this marker: Selecting a President (here, next to this marker); William Howe (here, next to this marker); Treaties and Appointments (here, next to this marker); The Executive Mansion (here, next to this marker); What is Executive Power? (here, next to this marker); State of the Union (here, next to this marker). Touch for a list and map of all markers in Philadelphia.
 
Other markers
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no longer nearby.
Suppressing the Opposition (was here, next to this marker but has been replaced with another marker now near it); The Keeper of the House (was here, next to this marker but has been replaced with another marker now near it); "An Act respecting fugitives from Justice" (was here, next to this marker but has been replaced with another marker now near it); "We shall come to a civil war" (was here, next to this marker but has been permanently removed); "I will fear no Evil" (was here, next to this marker but has been replaced with another marker now near it); "Burn this treaty to Hell!" (was here, next to this marker but has been replaced with another marker now near it); The House & the People Who Worked & Lived In It (was here, next to this marker but has been permanently removed); "I am free now" (was here, next to this marker but has been permanently removed); The opener of the Way (was here, next to this marker but has been replaced with another marker now near it); A Day of Reciprocity (was here, next to this marker but has been replaced with another marker now near it).
 
Additional keywords. Quasi-War with France
 
 
Credits. This page was last revised on July 30, 2026. It was originally submitted on July 26, 2026, by Devry Becker Jones of Washington, District of Columbia. This page has been viewed 10 times since then. Photos:   1, 2. submitted on July 26, 2026, by Devry Becker Jones of Washington, District of Columbia.
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Aug. 2, 2026