Fourth Army ( Romania ) The Fourth Army ( Armata a 4 - a Română ) was a field army ( a military formation ) of the Romanian Land Forces active from the 19th century to the 1990s . History . The Fourth Army fought in the Romanian Campaign of World War I , under the command of General Prezan . Units under its command took part in the Prunaru Charge and the Battle of Bucharest . On 22 June 1941 , according to research by Leo Niehorster , the 4th Army consisted of the 3rd Army Corps ( Guards , 15th , and 35th Reserve Divisions ) , the 5th Army Corps ( Border Division and 21st Division ) , the 11th Army Corps ( two fortress brigades ) , and the 4th Army Cooperation Command . It was under the command of Lieutenant General N . Ciuperca . In 1942 , it fought on the Axis side as part of the German Army Group B . In July 1941 it took part in Operation Munchen , the recapturing of Bessarabia and the Northern Bukovina , which was annexed by the Soviet Union the year before . By August 1941 during the Siege of Odessa , 4th Army had under command the 1st , 3rd , 4th , 5th , 6th , and 11th Army Corps under its control , with a total of 17 infantry divisions , the 1st Armoured Division ( Romania ) , three cavalry divisions , and a total of 38 artillery regiments . On November 9 , 1941 , Constantin Constantinescu - Claps was appointed the commander of the Fourth Army , and became a Corps General on January 24 , 1942 . On February 10 , 1943 , he was relieved of his assignment and replaced by Constantin Sănătescu . From late 1942 to early 1943 , the Fourth Army was almost entirely destroyed during the Battle for Stalingrad . The Romanian Third Army suffered a similar fate . During April – May 1944 the Romanian forces led by General Mihai Racoviţǎ , together with elements of the German Eighth Army were responsible for defending Northern Romania during the Soviet First Jassy - Kishinev Offensive , and took part in the Battles of Târgu Frumos . In August 1944 , the Red Army entered Romania after driving back Army Group South from the region . On August 23 , Marshal Ion Antonescu was dismissed by King Michael I , and Romania declared war on Germany and Hungary some days later . The Soviets took control of the oilfields in the Ploieşti area , and the Romanian Army was used to fight German forces on the Eastern Front . The Fourth Army became one of the Romania n armies fighting for the Red Army on the Eastern Front . In its campaign from August 1944 to May 1945 , the Romanian Army lost some 64 , 000 men killed . The Fourth Army took part in Soviet offensives , notably at Prague in May 1945 , which happened to be the last offensive it took part in World War II . The Fourth Army was involved in the Battle of Turda which lasted from 5 September - 8 October 1944 , in the area around Turda , present - day Romania . Troops from the Hungarian 2nd Army and the German 8th Army fought a defensive action against the Fourth Army and the Red Army . The battle was one of the largest fought in Transylvania during World War II . In the Prague Offensive , the Fourth Army , together with the Romanian First Army and Polish Second Army , formed part of the Soviet 2nd Ukrainian Front . Marshal Ivan Koniev , the commander of the First Ukrainian Front , was the main Soviet commander in the area . Together with Marshal Georgy Zhukov ' s First Byelorussian Front , Koniev had launched the great attack on April 16 that resulted in the fall of Berlin and Soviet victory on the Eastern Front . The offensive started on May 6 , a few days before the end of the war . German resistance in the east was now limited to small pockets scattered across Germany , Czechoslovakia , and Austria . The remnants of Army Group Center held the remaining German - controlled areas in the east . In the attack on Prague , German resistance was defeated in the city , and the Soviet , Romanian , and Polish forces entered the city on May 9 . Czech partisan s had been fighting the Germans there for a few days . By May 11 and 12 , all remaining German pockets of resistance in the east were defeated . The army was active after the war until 1947 . In 1945 , the Fourth Army comprised two army corps : 2nd Army Corps , at Bucharest , cu Divizia de Gardă şi 1st " TUDOR VLADIMIRESCU " Volunteer Division , Regimentul 2 Artilerie Grea , Regimentul 2 Pionieri [ 2nd Pioneer Regiment ? ] , Regimentul 4 Călăraşi , and corps units ; 7th Army Corps , at Sibiu , cu 2nd Infantry Division , the 2nd " HOREA , CLOŞCA şi CRIŞAN " Volunteer Division , Regimentul 1 Artilerie Grea , 7th Pioneer Regiment [ Pionieri ] , Regimentul 1 Călăraşi , and corps uunits . " From March 1945 to June 1947 , the generals were in command Dăscălescu Nicolae Gheorghe Stavrescu Mihail Lascar , Grigore Vasiliu Rascanu and C . Nicolau . 4th Army Command was disbanded on 5 June 1947 , under the Order M . St . M . nr . no . 40 . 500 , and the units were redeployed . By Royal Decree 1346 of 28 June 1947 , was born from 01 . 07 . 1947 3rd Military Region , based in Cluj . " The 3rd Military Region became the 3rd Army on 30 April 1960 , and the 4th Army on 5 April 1980 . In 1989 it was reported to consist of the 6th Tank Division ( Targu Mureş ) , possibly named the Horia , Cloşca şi Crişan Division , the 11th Mechanised Division ( Oradea ) , and the 81st Mechanised Division ( Dej ) , as well as smaller units : the 1st Mountain Bde , 5th Mountain Bde , and 37th Tactical Missile Brigade . The 11th Mechanised Division reportedly consisted of the following units : The 11th Mechanised Division became a brigade on 1 October 1994 , and in 2002 became a motorised infantry brigade . It was disbanded in May 2005 . The Fourth Army was redesignated the 4th Territorial Army Corps in 2000 and subsequently the 4th Infantry Division ( Romania ) in 2008 .