From 1913 to 1915 he studied at the Cavalry Officer School in Târgoviște, graduating with the rank of second lieutenant. He fought in World War I with the 4th Regiment Roșiori "Regina Maria", and in 1917 was promoted to lieutenant. He stood out during the Third Battle of Oituz; for his valor, he was decorated with the Order of Michael the Brave, 3rd class.. In 1919 he was promoted to captain.
The interwar period
Korne continued his military training in 1921–23 at the Higher War School in Bucharest, and in 1925–26 at the Cavalry School in Saumur, France. He was then named cavalry instructor and tactics professor at the Special Cavalry School in Sibiu; promoted in 1927 to the rank of major, he became the school’s director of studies. In 1934 he was promoted to the rank of lieutenant colonel and assigned to command the 1st Battalion/9th Călărași Regiment. Subsequently he was chief of staff of the 12th Division and then of the General Inspectorate of the Cavalry, after which he was promoted in 1939 to the rank of colonel and given the command of the 8th Roșiori Regiment.
World War II
The start of Operation Barbarossa on 22 June 1941 found Colonel Korne in command of the 6th Motorized Roșiori Regiment from the 5th Cavalry Brigade, which was stationed in Northern Moldavia. On 4 July the brigade crossed the Prut River and advanced with a detachment commanded by Korne towards Lipnic, reaching the Dniester River on 7 July. After forcing the river on 17 July and breaking through the Stalin Line, situated on the left bank, his regiment advanced to the Bug River, reaching it at the beginning of August. By the end of the month his regiment was at the Dnieper River; crossing the river on 19 September, it continued to advance north of the Sea of Azov. On 25 September, at the start of the Battle of the Sea of Azov, the 5th Cavalry Brigade faced the powerful Soviet offensive carried out by the 9th and 18th Armies, being attacked by a much superior force in the Yakymivka area. The 6th Motorized Roșiori Regiment stood its ground, even though the rest of the brigade was pushed back. The offensive ran out of steam after several days and the German–Romanian counterattack led to the encirclement and destruction of the two Soviet armies. For his actions during the battle, Colonel Korne was awarded on 12 February 1942 the Order of Michael the Brave, 2nd class by King Michael I. Korne was engaged in follow-up operations in Crimea. Breaching the Isthmus of Perekop on 28 October 1941, his regiment moved towards Simferopol, cut the retreat roads to Yevpatoria, and then took part in the siege of Sevastopol and the Battle of the Kerch Peninsula. Korne's units fought at Feodosia and on the road to Kerch alongside the German troops of Colonel Karl-Albrecht von Groddeck. Starting in August 1942 Korne fought in the Battle of the Caucasus, reaching Anapa at the end of the month, and then Novorossiysk, which fell to Wehrmacht and Romanian Army units at the beginning of September. On 7 October, Korne took command of 8th Cavalry Division and engaged in the Battle of Stalingrad. After the start of the Soviet offensive on 20 November, the division pulled back; its attempt to reach the encircled German 6th Army failed and, on 26 December, the general retreat started. At the start of 1943, Korne was promoted to the rank of brigadier general. In April–May 1944, during the First Jassy–Kishinev Offensive launched by the Soviets, he commanded the 1st Armoured Division "România Mare" at the first and second battles of Târgu Frumos.
