On June 14, 1775, the Continental Congress voted to replace the colonies' part-time militias with a full-time army – and after 1,300 battles and skirmishes, the Army, led by Gen. George Washington, defeated the British Empire,

Thousands of agents, officers and specialists will be deployed from local, state and federal law enforcement agencies from across the country for security.

Authorities have closed a wide swath of popular campgrounds and backpacking areas along the Pacific Crest Trail in Washington as they search for a former Army soldier wanted in the deaths of his three young daughters.

Trump said the "horrific violence will not be tolerated" in a statement on social media, vowing the shooter will be prosecuted "to the fullest extent of the law." He said the Department of Justice and Federal Bureau of Investigation are investigating the situation.

There is a significant chance of rain across the Washington, D.C., area on Saturday, the National Weather Service said, and thunderstorms late in the afternoon or evening could coincide with events near the National Mall to mark the U.S. Army’s 250th birthday.

The Army plans an elaborate display of armor, artillery and aircraft for its 250th anniversary parade June 14.

Protests are planned in hundreds of communities across the country on Saturday, June 14.Called "No Kings Day," the rallies are being held to oppose what organizers see as Trump's power grab and focus on participants' patriotism and support for the U.S. Constitution. American flags are expected to be front and center.

The Army will showcase its most powerful military vehicles Saturday in a parade through the nation's capital, featuring more than $265 million worth of tanks and armored vehicles that normally operate on front-line battlefields.