Conrad D. Philos, 90, a civilian lawyer with the Army's Judge Advocate General's Corps, died Aug. 19 of heart disease at Iliff Nursing Home and Rehabilitation Center in Dunn Loring. He was a resident of Vienna.

Mr. Philos worked in the JAG Corps at the Pentagon from 1947 to 1977 and was assistant judge advocate general of the Army from 1967 to 1969. He was the Army's special legal assistant for intelligence from 1964 to 1967.

He was born in Chicago and received his law degree from the University of Illinois. He joined the Army as a private in 1942 and was quickly assigned to Officer Candidate School. He served in infantry units in Europe during World War II and was awarded the Bronze Star.

After the war, he was acting chief of military justice at U.S. headquarters in Austria from 1945 to 1947. As a member of the Army Reserve, he was activated during the Korean and Vietnam wars and reached the rank of brigadier general at his retirement from the service in 1973.

He received the Army Department's decoration for exceptional civilian service in 1950 and a medal for civilian service in Vietnam in 1968.

He was the author of several legal articles on civil rights, employment law and collective bargaining in the U.S. Postal Service. He also wrote the "Handbook of Court-Martial Law" in 1953 and edited the Digest of Military Law, published from 1949 to 1953. He was senior editor of the Federal Bar Journal.

He did graduate work at the University of London, the University of Vienna in Austria, the University of Chicago, George Washington University and armed forces graduate schools. He taught at the Judge Advocate General's school in Charlottesville from 1952 to 1962 and was a professor at the George Mason University School of Law from 1981 to 1985. He was instrumental in gaining accreditation for George Mason's law school and was named an emeritus professor.

After retiring from the JAG Corps in 1977, he entered private practice with several local firms, most notably McNutt, Dudley & Easterwood of Washington, and continued to practice until he was 85. His specialty was civil rights and employment discrimination law.

He was on the board of directors of Sovran Bank from 1975 to 1985.

His marriage to Helen S. Philos ended in divorce.

Survivors include his wife of 35 years, Myung Diep Philos of Vienna; three daughters from his first marriage, Daphne Philos of Alexandria, Diane Philos-Jensen of West Barnstable, Mass., and Valerie Morris of Accokeek; six grandchildren; and five great-grandchildren.