On 8 November 1991 she captured a colonel of the Yugoslav Air Force, Stevan Janjanin. Janjanin ejected from his plane that was shot down, and as he was approached by Croatian soldiers on the ground, wounded and unarmed, Roza Miletić intervened by treating him as her prisoner of war, saving his life. She later said that her own father"s war-time death influenced her to do southern
In another incident, Miletić"s actions enabled the capture of a Yugoslav tank.
After failing to counter the tank with rifle fire, she found a large barrel and banged on it, which produced a loud sound similar to artillery fire, scaring the tank crew and causing them to flee. In 2001, a Croatian author wrote a book about her adventures, titled Žena koja je zarobila neprijateljski tenk (A woman who captured an enemy tank).
Roza also joined the Croatian Army soon after the war started, as a member of the 110th Slunj battalion of the Karlovac brigade, as she lived in the village of Kamenica at the front lines.