"The Presidential Unit Citation is awarded to units of the Armed Forces of the United States and co-belligerent nations for extraordinary heroism in action against an armed enemy occurring on or after 7 December 1941. The unit must display such gallantry, determination, and esprit de corps in accomplishing its mission under extremely difficult and hazardous conditions as to set it apart and above other units participating in the same campaign. The degree of heroism required is the same as that which would warrant award of a Distinguished Service Cross to an individual. Extended periods of combat duty or participation in a large number of operational missions, either ground or air is not sufficient. This award will normally be earned by units that have participated in single or successive actions covering relatively brief time spans. It is not reasonable to presume that entire units can sustain Distinguished Service Cross performance for extended time periods except under the most unusual circumstances. Only on rare occasions will a unit larger than battalion qualify for award of this decoration."

The Medal of Honor is the highest military decoration awarded by the United States government. It is bestowed on members of the United States armed forces who distinguish themselves "conspicuously by gallantry and intrepidity at the risk of his or her life above and beyond the call of duty while engaged in an action against an enemy of the United States." Due to the nature of its criteria, it is often awarded posthumously.

Members of all branches of the U.S. military are eligible to receive the medal, and each service has a unique design with the exception of the Marine Corps and Coast Guard, which both use the Navy's medal. The Medal of Honor is often presented personally to the recipient or, in the case of posthumous awards, to next of kin, by the President of the United States. Due to its honored status, the medal is afforded special protection under U.S. law.

The Medal of Honor is one of two military neck order awards issued by the United States, but is the sole neck order awarded to the US armed forces. The other is the Commander's Degree of the Legion of Merit, which is only authorized for issue to foreign dignitaries.

As the award citation includes the phrase "in the name of Congress", it is sometimes erroneously called the Congressional Medal of Honor; however, the official title is the Medal of Honor.

The Distinguished Service Cross was established by President Woodrow Wilson on January 2, 1918.

The Distinguished Service Cross (DSC) is the second highest military decoration that can be awarded for extreme gallantry and risk of life in actual combat with an armed enemy force. Actions that merit the Distinguished Service Cross must be of such a high degree to be above those required for all other U.S. combat decorations but not meeting the criteria for the Medal of Honor. The Distinguished Service Cross is equivalent to the Navy Cross (Navy, Marine Corps, and Coast Guard) and the Air Force Cross (Air Force).

The Distinguished Service Cross was first awarded during World War I. In addition, a number of awards were made for actions before World War I. In many cases, these were to soldiers who had received a Certificate of Merit for gallantry which, at the time, was the only other honor besides the Medal of Honor the Army could award. Others were belated recognition of actions in the Philippines, on the Mexican Border and during the Boxer Rebellion.

This decoration is distinct from the Distinguished Service Medal, which is awarded to persons in recognition of exceptionally meritorious service to the government of the United States in a duty of great responsibility.

The Distinguished Service Medal is the highest non-valorous military and civilian decoration which is issued for exceptionally meritorious service to the government of the United States in either a senior government service position or as a senior officer of the United States armed forces or other Uniformed services. There is also the President's Award for Distinguished Federal Civilian Service which is the highest medal that can be awarded to a career government employee.

The Distinguished Service Medal was authorized by Presidential Order dated January 2, 1918, and confirmed by Congress on July 9, 1918.

The Distinguished Service Medal is issued both as a military decoration and civilian award. The Army version of the Distinguished Service Medal is typically referred to simply as the "Distinguished Service Medal" while the other branches of service use the service name as a prefix.

The Silver Star is the third-highest military decoration that can be awarded to a member of any branch of the United States armed forces for valor in the face of the enemy.

The Silver Star is the successor decoration to the Citation Star which was established by an Act of Congress on July 9, 1918. On July 19, 1932, the Secretary of War approved the Silver Star to replace the Citation Star.

The Silver Star is awarded for gallantry in action against an enemy of the United States not justifying one of the two higher awards - the service crosses (Distinguished Service Cross, the Navy Cross, or the Air Force Cross), the second-highest military decoration, or the Medal of Honor, the highest decoration. The Silver Star may be awarded to any person who, while serving in any capacity with the armed forces, distinguishes himself or herself by extraordinary heroism involving one of the following actions:

-        In action against an enemy of the United States

-        While engaged in military operations involving conflict with an opposing foreign force

-        While serving with friendly foreign forces engaged in an armed conflict against an opposing armed force in which the United States is not a belligerent party

The Legion of Merit is awarded for exceptionally meritorious conduct in the performance of outstanding services and achievements. The decoration is issued both to United States military personnel and to military and political figures of foreign governments. The Legion of Merit (Commander degree) is one of only two United States military decorations to be issued as a neck order (the other being the Medal of Honor) and the only United States decoration which may be issued in award degrees (much like an order of chivalry or certain Orders of Merit).

The criteria are "for exceptionally meritorious conduct in the performance of outstanding services and achievements".

Although recommendations for creation of a Meritorious Service Medal were initiated as early as September 1937, no formal action was taken toward approval.

The Bronze Star Medal (or BSM) is awarded for bravery, acts of merit, or meritorious service. When awarded for bravery, it is the fourth-highest combat award of the U.S. Armed Forces and the ninth highest military award (including both combat and non-combat awards) in the order of precedence of U.S. military decorations. Officers from the other federal uniformed services are also eligible to receive the award if they are militarized or detailed to serve with a service branch of the armed forces.

The Bronze Star Medal was established by Executive Order 9419, 4 February 1944.

For “Heroic or meritorious achievement or service.”

The Purple Heart awarded in the name of the President to those who have been wounded or killed while serving on or after April 5, 1917 with the U.S. military. The National Purple Heart Hall of Honor is located in New Windsor, New York. With its forerunner, the Badge of Military Merit, which took the form of a heart made of purple cloth, the Purple Heart is the oldest award that is still given to members of the U.S. military, the only earlier award being the obsolete Fidelity Medallion.

The original Purple Heart, designated as the Badge of Military Merit, was established by George Washington—then the commander-in-chief of the Continental Army—by order from his Newburgh, New York headquarters on August 7, 1782.

The Purple Heart is awarded in the name of the President of the United States to any member of the Armed Forces of the United States who, while serving under competent authority in any capacity with one of the U.S. Armed Services after April 5, 1917, has been wounded or killed, or who has died after being wounded. Specific examples of services which warrant the Purple Heart include any action against an enemy of the United States; any action with an opposing armed force of a foreign country in which the Armed Forces of the United States are or have been engaged; while serving with friendly foreign forces engaged in an armed conflict against an opposing armed force in which the United States is not a belligerent party; as a result of an act of any such enemy of opposing armed forces; or as the result of an act of any hostile foreign force.

The Air Medal was established by Executive Order 9158, signed by Franklin D. Roosevelt, on 11 May 1942.

Awards may be made to recognize single acts of merit or heroism, or for meritorious service. Award of the Air Medal is primarily intended to recognize those personnel who are on current crew member or non-crew member flying status which requires them to participate in aerial flight on a regular and frequent basis in the performance of their primary duties. However, it may also be awarded to certain other individuals whose combat duties require regular and frequent flying in other than a passenger status, or individuals who perform a particularly noteworthy act while performing the function of a crew member but who are not on flying status. These individuals must make a discernible contribution to the operational land combat mission or to the mission of the aircraft in flight.