The T-33A and TV-2 aircraft converted for that task were located at Skopski Petrovec, Mostar and Cerklje airbases so the squadron members had to go to those airports.

During the Soviet invasion of Czechoslovakia squadron increased combat readiness, by the taskforce "Avala" and assignment to 11th Air Defense Division.

In 1975 the squadron flew aircraft for the Libyan Air Force for the first time, from Mostar, via Dubrovnik, Brindisi, Palermo and Tripol to Misurata.

From six G-4s four were converted at Aeronautical Plant "Zmaj" for pulling the targets, so known under designation N-62T, while other two aircraft were in standard trainer/light attack configuration, like the rest of the produced Super Galebs.

Although the 82nd Aviation Brigade, which had aerial support as main task, was still in Slovenia, it couldn't be engaged because it broke on national lines, so the 252nd Squadron, whose personal in 1991 was 90% of Serbian nationality, so it was capable to give aerial support to Yugoslav People's Army units in Slovenia.

The most important operation was on June 30, protecting withdrawn of the 82nd Aviation Brigade, when members of squadron had several air strikes on Slovenian TO forces barricades.

On July 30, Croatian police in Kostajnica has open fire on aircraft on reconnaissance mission, and Squadron "Kurjaci" has responded by attacking their positions, causing them huge losses.

The war in Croatia spread, but in first period Air Force received an order from General Staff of Yugoslav Pepople's Army not to respond to fire from ground.

On July 16, Croat forces have fired MANPAD on a G-4, showing that they have modern and effective air defense weapons, but pilot has managed to avoid missile with maneuver.

The squadron again attacked Croat forces, when on July 27 the Croatian Guard and police opened fire on aircraft, which responded destroying two ammunition warehouse.

On 24 August squadron lost first aircraft in combat, which was hit by two 30mm guns located near one silo, in region of Vukovar.

Combat operations were continued in rest of August, attacking Croatian Guard barracks in Eastern Slavnoia.

By September the squadron continued combat actions joined Yugoslav People's Army units in battle of Vukovar, by attacking positions around brickyard, silo, water tower, among other.

In May 1992, Yugoslav People's Army was officially dissolved, and 252nd Squadron became part of "new" Air Force of Federal Republic of Yugoslavia.

As a result of the bad political situation in 1998, and possible risk of NATO's aggression on FRY, on October 2 the squadron was relocated to Ponikve airport for 12 days and later returned to Batajnica.

It was again relocated to Ponikve port, where from it has made five combat flights in cooperation with 241st Squadron, attacking Kosovo Liberation Army positions at Čičavica mountain.

Pilots were flying on extremely low level, due the total air supremacy of NATO aircraft over Kosovo and Serbia.

Most of aircraft that have survived NATO attacks were on overhaul, so the squadron has continued its main task, training by spring of 2000.