He later commanded the Marine infantry battalion in Korea, where he was wounded and subsequently decorated for his bravery; he also served two tours of duty in Vietnam.

He was subsequently attached to the Marine detachment aboard the newly commissioned aircraft carrier USS Hornet under Captain Marc Mitscher.

[1][2] Dulacki served aboard the Hornet during the Doolittle Raid on Tokyo in April 1942 and was promoted to the rank of first lieutenant in September of that year.

Dulacki subsequently took part in the Battle of the Philippine Sea, during which Belleau Wood was severely damaged by a kamikaze in October 1944.

[1][2][3] Belleau Wood sailed for Hunters Point Naval Shipyard, California, for repairs in November of that year and Dulacki was detached from the ship in early 1945.

He returned to the United States in November of that year and attended Army Language School in Monterey, California, where he studied Russian.

He departed Quantico in July 1956 and joined the 1st Marine Division under Major General Robert O. Bare at Camp Pendleton, California.

[1][2][8] Upon his return to the United States in June 1961, Dulacki was attached to the Joint Chiefs of Staff under General Lyman Lemnitzer and then transferred to the Defense Intelligence Agency in January 1962.

Dulacki was subsequently transferred to the headquarters of the 3rd Marine Division under Major General Wood B. Kyle and assumed duty as chief of staff.

He was stationed at Chu Lai Base and participated in the planning of search and destroy operations in Quảng Nam Province.

[8][10] Dulacki returned to South Vietnam in June 1969 and assumed duty as operations officer of the III MAF under Lieutenant General Herman Nickerson Jr.

Throughout the rest of 1969, he participated in the planning and execution of several search and destroy operations including Oklahoma Hills, Pipestone Canyon.

Dulacki served in that capacity until December 22, when he succeeded Brigadier General George E. Dooley as chief of staff of III MAF.

[1][11] Dulacki continued in that capacity until mid-June 1970, when he was relieved by Brigadier General Thomas H. Miller and ordered back to the United States.

He also held additional duties as an advisory board member at the National Armed Forces Museum, Smithsonian Institution, and as an honorary trustee of the San Diego Paderewski Society.