In 1918, he became a member of Samoobrona Grodzienska, a Polish organization for Grodnian self-defence; on January 22, 1919, he was named commandant of the Białystok Rifle Regiment of the 1st Lithuanian–Belarusian Division.

Sulik fought in the Polish-Soviet War, and took part in the Żeligowski's Mutiny, which resulted in capturing Wilno in September 1920.

After the Soviet invasion of Eastern Poland on September 17, 1939, Sulik commanded KOP units in several skirmishes with the advancing Red Army troops.

In November 1939, he was nominated as deputy to Janysz Galadyk, commandant of Wilno district of the Service for Poland's Victory.

He was buried at Brompton Cemetery, and on September 12, 1993, his and his wife's ashes were moved to his native village of Kamienna Stara.