Shield
Azure, an arm embowed Proper and couped at the shoulder raised and armed with a buckler Or having seven rivets of the field three and four.
Crest
On a wreath Or and Azure, in front of a tower Gules masoned of the first and emitting from each side a stream of water of the second, three spears one in pale and two in saltire with shafts of the first and points of the second those points in saltire each charged with a fleur-de-lis of the first, over all in pale an escutcheon barry of ten Argent and of the second.
Motto
THE STRONG ARM FOR VICTORY.
Shield
The buckler represents the armored protective device. The arm embowed is raised in the attitude of striking.
Crest
The red tower gushing water to each side alludes to the bitter campaign to secure the dams of the Roer River, for which the Regiment received a Distinguished Unit Citation. The spears refer to the unit's push through Normandy, Northern France and Germany. The shield, bearing a part of the arms of Luxembourg, represents the award of the Luxembourg Croix de Guerre for participation in the liberation of that state.
The coat of arms was originally approved for the 34th Armored Regiment (Light) on 10 December 1941. It was redesignated for the 34th Armored Regiment on 26 March 1942. It was redesignated for the 34th Tank Battalion on 10 November 1943. The insignia was redesignated for the 34th Medium Tank Battalion on 29 March 1954. It was redesignated for the 34th Armor Regiment on 20 January 1958. The insignia was amended to add a crest on 9 June 1964.