The First Militia Act of 1792 allowed the president to call up the militias in the event of a foreign invasion , in response to attacks by American Indians .
The First Militia Act of 1792 when required for the enforcement of federal law .
The First Militia Act of 1792 allowed the president to call up the militias in the event of a foreign invasion , in response to attacks by American Indians , and when required for the enforcement of federal law .