Give an Example, and the Constitutional Checks, when the Head of Government carries out the Role: Military

-Trump had used the Military to quell BLM Protests after George Floyd's Death. Obama sent 1k National Guardsmen to the US-Mexico Border in 2010. Biden had issued an Executive Order to Implement Reforms to the Military Justice System and address issues such as sexual assault and other Issues from Commanders. -Not Much, but, State's Powers are Protected via Federalism. Subsequent Laws only allow the President to deploy Troops in the US, with the Individuals States Permission. Some States Refused Trumps Help to Quell BLM