After graduating from Kaunas Primary School, his parents moved to Obeliai and he learned to work by telegraph at the railway station.

On 1906, Žukas returned to Lithuania and passed the graduation exams of Kaunas Maironis University Gymnasium externally.

From April 14, 1920 to October 30, 1921, he served as a Representative of the Lithuanian Farmers and Greens Union in the Constituent Assembly of Lithuania.

From October 19, 1920 to April 7, 1921, he served Chief of Defense of Lithuania of Kazys Grinius and promoted to Colonel.

In 1944, Žukas left for Germany and in 1949, emigrated to the United States and settled in Cleveland, participated in the activities of the Lithuanian Soldiers 'Veterans' Union Ramovė.