Sucharski was born on November 12, 1898, in Gręboszów, a village near
Tarnów, to a peasant family. He finished a local bi-yearly trade school and then a similar school in
Otfinów. In early 1917 he graduated from the 2nd KuK Gymnasium in Tarnów and on February 13 he volunteered for service with the
Austro-Hungarian Army. During his service in the
March Battalion of the
Bochnia-based 32nd
Landwehr Regiment, he passed his
matura exams and in February 1918 graduated from an officers school in
Opatów. Dispatched with his regiment to the Italian front of the
Great War, Sucharski was infected with
malaria and spent the remainder of the war in various hospitals in
San Stino di Livenza and then
Celje. Upon his return to Poland, on February 7, 1919 he joined the Polish Army and the Tarnów-based
16th Infantry Regiment, in part composed of his former Austro-Hungarian unit. In March he took part in the defence of
Cieszyn Silesia against the
Czechoslovak invasion and in June he was promoted to the rank of Corporal. By the end of October he was transferred to the North-Eastern sector of the front of the brief
Polish-Bolshevik War where he took part in fighting along the Lithuanian border during the brief
Polish-Lithuanian War for the region around
Suwałki. On January 14, 1920 he was promoted to the rank of
2nd Lieutenant and voluntarily joined the storming battalion of the
6th Infantry Division. For his bravery (and wounds) in the battle for
Potnica and
Bogdanówka on August 30, 1920, Sucharski was awarded the Order of
Virtuti Militari, the highest Polish military decoration. He also received the
Cross of the Valorous and was promoted to
1st Lieutenant after the war. In the interbellum Henryk Sucharski remained in active service. He graduated from a variety of courses for various branches of the military and on March 19, 1928 he was promoted to the rank of
Captain. An instructor in the Infantry NCO School in
Ostrów Mazowiecka, in October 1930 he joined the
Brześć nad Bugiem-based
35th Infantry Regiment. After graduating from additional courses at the Centre for Infantry Training in
Rembertów near Warsaw, on March 19, 1938 Sucharski was again promoted, this time to the rank of Major. ==Westerplatte==