In the course of the war, the Soviet command used the fighter aviation units to support the advance of the Red Army infantry and carry out the bombing raids on supply trains behind the Finnish defence lines.

[9] At the onset of the German attack on the Soviet Union in July 1941, Urdia was deployed to the warfront within newly formed 101st Fighter Aviation Regiment of the Air Defence Division (101-я истребительная авиационная дивизия).

[14] By the end of August 1942, Urdia flew number of missions on the Li-2 aircraft to supply the Soviet troops and continue aerial assaults on Wehrmacht's 6th Army which has reached Voronezh during the early stages of Operation Blau.

In September 1942, Evsevev was reassigned to command the 8th Fighter Aviation Corpus of the Anti-Aircraft Defence (8-й истребительный авиационный корпус ПВО) in the Battle of the Caucasus where the German forces launched the Operation Edelweiss to reach the Baku oil fields.

In December, Evsevev transferred Urdia and other highly skilled pilots to the Caucasus where the situation was volatile as the German 4th Mountain Division of the Army Group A made territorial gains in the midst of anti-Soviet insurgency by the Chechen resistance under the leadership of Khasan Israilov.

[22] However by July 1943, the Luftwaffe was exhausted and no longer able to withstand the countless counteroffensive measures by the Soviets halted its attack, hence ending the battle and finally losing the objective of gaining air superiority over the entire region.

[24][25][26] In October 1943, Urdia was assigned to the North Caucasus Military District of the Soviet Air Forces (Краснознамённый Северо-Кавказский военный округ) but the details of his service and whereabouts from November 1943 is unknown.

The official Soviet document on the military loses among the officers of the Fighter Aviation Division after May 9, 1945 (Список офиcерного состава Истребителной Авиаcии ПВО страни погибших после 9 Mая 1945 г.)