[1] Prior to World War I, Iancovescu achieved the rank of brigadier general in 1915.

On December 1, 1917, Iancovescu was awarded the Order of Michael the Brave, III Class,[4] for the way he led his troops at the Battle of the Argeș, which occurred one year earlier, from 1 to 3 December 1916.

[5] "For the way he led the troops of the Danube Defense Group during the fierce battles at Călugăreni in November 1916 and the skill with which he facilitated the operations of the Argeș Army."

1403, "Mihai Viteazul" Order , class III, December 1, 1917 [4]He served as Minister of War[6] between July 20, 1917 and March 5, 1918, achieving the rank of lieutenant general[2] and replacing Vintilă Brătianu, who assumed command of the newly created Ministry of Munitions and War Materials.

[7] From 1916 to 1919, Iancovescu served as director of the National Military Circle.