Who is the senior US Military Service?

Answer 1

Just which is the senior service?US Marine Corps?

The United States Marine Corps traces its institutional roots to the Continental Marines of the American Revolutionary War, formed at Tun Tavern in Philadelphia, by a resolution of the Second Continental Congress on 10 November 1775, to raise 2 battalions of Marines. That date is regarded and celebrated as the date of the Marine Corps' "birthday." (Confirmed at Marines.com) At the end of the American Revolution, both the Continental Navy and Continental Marines were disbanded in April 1783. Although individual Marines stayed on for the few American naval vessels left, the last Continental Marine was discharged in September 1783. The institution itself would not be resurrected until 1798. In that year, in preparation for the Naval War with France, Congress created the United States Marine Corps. Marines had been enlisted by the War Department as early as August 1797 for service in the new build frigates authorized by Congress. The "Act to provide a Naval Armament" of March 18, 1794 authorizing them had specified the numbers of Marines to be recruited for each frigate.

US Navy?

In the early stages of the American Revolutionary War, the establishment of an official navy was an issue of debate among the members of the Continental Congress. Supporters argued that a navy would protect shipping, defend the coast, and make it easier to seek out support from foreign countries. Detractors countered that challenging the British Royal Navy, then the world's preeminent naval power, was a foolish undertaking.

Commander in Chief George Washington commissioned seven ocean-going cruisers to interdict British supply ships, and reported the captures to the Congress. This effectively ended the debate in Congress as to whether or not to "provoke" the British by establishing a Navy as Washington's ships had already captured British ships, somewhat a provocation.

While Congress deliberated, it received word that two unarmed British supply ships from England were heading towards Quebec without escort. A plan was drawn up to intercept the ships-however, the armed vessels to be used were owned not by Congress, but by individual colonies. Of greater significance, then, was an additional plan to equip two ships that would operate under the direct authority of Congress to capture British supply ships. This was not carried out until 13 October 1775, when George Washington announced that he had taken command of three armed schooners under Continental authority to intercept any British supply ships near Massachusetts. With the revelation that vessels were already sailing under Continental control, the decision to add two more was made easier: the resolution was adopted and 13 October would later become known as the U.S. Navy's official birthday. (Confirmed at Navy.com)

US Army?

The Continental Army was created on 14 June 1775 by the Continental Congress as a unified army for the states to fight Great Britain, with George Washington appointed as its commander. That date is regarded and celebrated as the date of the Army's "birthday." (Confirmed at Army.com)

After the war, though, the Continental Army was quickly disbanded as part of the American distrust of standing armies, and irregular state militias became the new nation's sole ground army, with the exception of a regiment to guard the Western Frontier and one battery of artillery guarding West Point's arsenal. However, because of continuing conflict with Native Americans, it was soon realized that it was necessary to field a trained standing army. The first of these, the Legion of the United States, was established in 1791.

US Air Force?

The Army created the first antecedent of the USAF in 1907, which through a succession of changes of organization, titles, and missions advanced toward eventual separation 40 years later. The USAF became a separate military service on 18 September 1947, (confirmed at Air Force.com) with the implementation of the National Security Act of 1947. The Act created the United States Department of Defense, which was composed of three subordinate departments, namely the Department of the Army, the Department of the Navy and a newly-created Department of the Air Force. Prior to 1947, the responsibility for military aviation was shared between the Army (for land-based operations), the Navy (for sea-based operations from aircraft carriers and amphibious aircraft), and the Marine Corps (for close air support of infantry operations).

The seniority of the US military services is US Army, US Navy, US Marine Corps and US Air Force.