In the period from August 1918 to July 1920, he commanded a company and battalion of the 1st Polish Rifle Regiment (later the 43rd Bajończyk Regiment ) of the Blue Army, commanded by General Józef Haller.

[2] He was the chairman of the board of the Volyn Regional Ice Hockey Association.

After breaking up the division in Bory Tucholskie, he managed to get out of the encirclement and join the staff of the Pomeranian Army.

During the war, he was in the Oflag II-C, where he was in charge of the underground activity for some time.

After his release from captivity from the Polish Armed Forces in the West, Werobej as the first deputy commander of the 5th Kresowa Infantry Division in Italy and the United Kingdom.