The 1st Infantry Division Dacica was one of the major units of the Romanian Land Forces, with its headquarters located in Bucharest.

[1][2][3] The First Army was one of the major units of the Romanian military in both World War I, partaking in such operations as the Romanian offensive in Transylvania in 1916[4] and the Battle of Mărășești in 1917,[5][6] and World War II, seeing action on the Eastern Front, particularly after the 23 August 1944 Coup, when the First Army fought westwards alongside Soviet units in battles such as that of Debrecen, Budapest and going as far as Prague.

[6] Following the end of the war, the First Army was disbanded on 2 June 1947, with the units under its command being transferred to one of the four newly formed Military Regions.

On the 1st of August 2000, the First Army was restructured, becoming the 1st Territorial Army Corps "General Ioan Culcer", as part of a wider program to bring the Romanian military in line with NATO standards.

On 15 August 2008, as a continuation of the reorganization process of the Romanian Land Forces, the 1st Territorial Army Corps "General Ioan Culcer" was reformed as the 1st Infantry Division, receiving the name "Dacica", and becoming the heraldic successor of the First Army.