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National Guard Birthday

December 13, 2025

|Recurring Event (See all)

An event every year that begins at 12:00 am on day 13 of December, repeating indefinitely

US National Guard Birthday

The National Guard Birthday

In 1636, the first militia regiments in North America were organized in Massachusetts. The Massachusetts Bay Colony’s General Court, the colony’s militia was organized into three permanent the regiments to defend the colony better. The 181st Infantry, the 182nd Infantry, the 101st Field Artillery, and the 101st Engineer Battalion  are the descendants of first regiments of Massachusetts Army National Guard. Massachusetts Army National Guard  is the oldest units in the U.S. military. On December 13, 1636, marks the beginning of the organized militia, and the birth of the National Guard’s one of the oldest units in the U.S. military.

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