An American mortar crew fires on the Communist North Korean invaders. 11 July 1950. Near Chochiwan, Korea. Signal Corps Photo #FEC-50-4100 (Turnbull)

A gun crew checks their equipment near the Kum River. 15 July 1950. Korea. Signal Corps Photo #24/SIG-FEC-50-4242

A 105-mm howitzer in action against the Communist-led North Korean invaders, somewhere in Korea. 22 July 1950. Korea. Signal Corps Photo #FEC-50-4597 (Pfc. Hancock)

American troops blasting Yongdok with their 105-mm howitzer. 23 July 1950. Yongdok, Korea. Signal Corps Photo #8A/FEC-50-4506 (Sgt. Riley)

Artillery gun crew waits for the signal to fire on the enemy, somewhere in Korea. 25 July 1950. Korea. Signal Corps Photo #8A/FEC-50-4713 (Breeding)

American artillery firing on Communist-led North Koreans, somewhere in Korea. 25 July 1950. Korea. Signal Corps Photo #8A/FEC-50-4712 (Breeding)

105-mm howitzer in action against the Communist-led North Korean invaders. 26 July 1950. Korea. Signal Corps Photo #8A/FEC-50-4839 (Wayne)

Equipment at Repeater Station, Taegu, Korea. Quad. Cable terminal on left, testboard on right and center. 1 August 1950. Korea. Signal Corps Photo #8A/FEC-50-5312

Men of Battery B, 61st Field Artillery, 1st Cavalry Division, fire across the Naktong River at postions of the Communist-led North Korean invaders. They are, L. to R., Pvt. Alvin Essary of Tuscalossa, Ala.; Pvt. Miller T. Young of Avonmore, Pa.; Pvt. Harvey L. Lewis of Porterville, Calif.; Pvt. Abel Saunders of Venton, Va.; and Cpl. Lester Mortz of Sheridan, Oregon. 7 August 1950. Waegwan, Korea. Signal Corps Photo #8A/FEC-50-5683 (Marques)

Pfc. Letcher V. Gardner (Montgomery, Iowa), Co D, 8th Cavalry, 1st Cavalry Division, fires on an emplacement of the Communist-led North Koreans, along the Naktong River, near Chingu. 3 August 1950. Korea. Signal Corps Photo #8A/FEC-50-6133 (Meyers)

A Field Artillery Battery of the 8th F/A, 25th Division fires on a North Korean road block with a 105-mm howitzer. 22 August 1950. Korea. Signal Corps Photo #8A/FEC-50-6704 (Capt. Scheiber)

Men of Battery A, 159th Field Arillery Battalion, fire a 105-mm howitzer in an indirect firing mission on the Korean battle line, near Uirson. 24 August 1950. Korea. Signal Corps Photo #8A/FEC-50-7424 (Pfc. Wayne H. Weidner)

Major General Hobart R. Gay, CG, 1st Cavalry Division, congratulates 2nd Lieutenant Raymond A. Whelan of Mossap, Conn., after awarding him the Silver Star for meritorious services. 25 August 1950. Korea. Signal Corps Photo #8A/FEC-50-6908 (Cpl. Hutchinson)

A .50 Cal. Machine gun squad of Co. E, 2nd Battalion, 7th Regiment, 1st Cavalry Division, fires on North Korean patrols along the north bank of the Naktong River, Korea. 26 August 1950. Korea. Signal Corps Photo #8A/FEC-50-7043 (Sfc. Riley)

Pfc. Robert Smith of Springfield, Colo., (left) and Pvt. Carl Fisher of Ponca, Okla., 27th Infantry Regiment, dug in and firing at Communist-led North Korean positions. 4 September 1950. Korea. Signal Corps Photo #8A/FEC-50-7815 (Pfc. Thomas Nebbia)

Men of the 5th RCT fire a .30 caliber machine gun at the Communist-led North Koreans across the Naktong River, north of Taegu. 18 September 1950. Korea. Signal Corps Photo #8A/FEC-50-8561 (Turnbull)

United Nations troops fighting on the outskirts of Seoul, the capital of Korea. 20 September 1950. Korea. Signal Corps Photo #FEC-50-20510 (Lt. Strickland and Cpl. Romanowski)

A member of the United Nations troops fires a submachine gun on Communist-led North Korean forces, during fighting in streets of Seoul. 20 September 1950. Korea. Signal Corps Photo #FEC-50-20508 (Strickland and Romanowski)

A machine gun crew fires at fleeing Communist-led North Korean targets during heavy street fighting in the captured city of Waegwan. L-r: Pfc. Austin Dela Cruz of Honolulu; Cpl. William Purdy; Pfc. Alexander Domingo of Honolulu; and platoon leader Sgt. Robert I. Muramoto of Honolulu, T.H. 21 September 1950. Korea. Signal Corps Photo #FEC-50-9336 (Chang)

A .30 caliber light machine gun crew of the 5th RCT, 1st Cav. Div., fires on Communist-led North Koreans, as they push toward Taejon, Korea. 22 September 1950. Korea. Signal Corps Photo #8A/FEC-50-9438 (Chang)

Wounded soldiers are evacuated (foreground) as M-4 tanks of the 5th RCT move to the front in the Kumchun area in Korea. 6 October 1950. Korea. Signal Corps Photo #FEC-50-20137 (Chang)

Sfc. Louis F. Walz (left), a member of Co. E, 5th Cavalry Regiment, 1st Cavalry Divisioin, and Pfc. Raymond M. Szukla, a member of Co. G, 5th Regimental Combat Team, 24th Imfantry Division, recieve medical aid at the 8063rd Mobile Army Surgical Hospital, attached to I Corps in Korea. Sfc. Walz is recovering from a head wound, and Pfc. Szukla suffered a wound in the right leg while engaged in action against the Communist-led North Korean forces. 4 November 1950. Korea. Signal Corps Photo #8A/FEC-50-21377 (McIntosh)

A patrol of Co. C, 65th Infantry Regiment, 3rd Infantry Division, fire light machine guns on Chinese Communist troops located in the hills near Haejung, North Korea. Sfc. Forsyth, who photographed the action, was wounded shortly after recording this picture. 27 November 1950. Korea. Signal Corps Photo #X/FEC-50-22454 (Forsyth)

A machine gun team of an X Corps military police company goes into action to relieve a convoy pinned down by fire of the Chinese Communists, in Korea. 6 December1950. Korea. Signal Corps Photo #X/FEC-50-22300 (Elkins)