After further research it turns out that my uncle was a member of the SS Cavalry Regiment 18 of the 8th SS Cavalry Division Florian Geyer which was a Waffen-SS cavalry Division during World War II. Per Wikipedia It was formed in 1942 from a cadre of the SS Cavalry Brigade which was involved in anti partisan operations behind the front line and was responsible for the extermination of tens of thousands of the civilian population. About 40% of the division were Danube Swabian from Siebenbürgen (Transylvania) and Banat (Serbia). The Training and Replacement Battalion of the 8th SS Cavalry Division was involved in suppressing the 1943 Warsaw Ghetto Uprising.In March 1944, it was named after Florian Geyer (1490–1525), the Franconian nobleman who led the Black Company during the German Peasants' War, while veterans from the division formed the core of the 22nd SS Volunteer Cavalry Division Maria Theresia, following the latter's creation on 29 April 1944. The Division was destroyed during the fighting in the Siege of Budapest in early 1945. The newly created division was soon sent back to the Eastern Front and fought in the Rzhev and Orel sectors in central Russia until the spring of 1943. The division was then moved to the area around Bobruisk, on internal security and anti partisan duties until September 1943. In September the division was moved again to the Southern front and took part in the German retreat to the Dnieper river. The division was then sent to Croatia but many new recruits were Shwoveh drawn form Hungary in March 1944. In April 1944, they returned to Hungary and took part in the fighting in Transylvania after the Romanian front collapsed.The Division was trapped in the Siege of Budapest with the IX SS Mountain Corps when the Russians and Romanians surrounded the city in December 1944. The 8th SS Cavalry Division was then involved in the fierce fighting to hold the city often engaged in hand-to-hand combat and fighting house to house. The Division was destroyed in the fighting for Budapest and by the end of the siege of the 30,000 men of the SS Corps only about 800 survived to reach the German lines.