<prompt> Bhala ukuqhubeka kwalesi sigaba - Engxenyeni yesibili ka-1926, uBerek wakhonza e-83rd Infantry Regiment eKobryn. NgoDisemba 1926 wabuyiselwa emuva e-9th Legions Infantry Regiment, futhi esikhathini sikaMeyi 1929 - Septhemba 1931, wafunda eWyzsza Szkoła Wojenna eWarsaw. Ngemva kokuphothula izifundo zakhe zobuphoyisa, waba ngumphathi wabasebenzi be-4th Infantry Division, eyayihlala eToruń 1931 - 1934, kwathi ngo-1934 - 36, wayala i-1st Rifle Battalion eChojnice. Wakhushulwa waba yi-Lieutenant Colonel ngoJanuwari 1, 1935, uBerek wakhonza e-Polish General Staff October 1936 - July 1939. Emasontweni ambalwa ngaphambi kokuhlaselwa kwePoland, wathunyelwa eJarosław, ukuba ayohola i-3rd Legions Infantry Regiment. UBerek wahlala esikhundleni sakhe kwaze kwaba sekunikezelweni kweModlin Fortress, ngo-29 Septhemba 1939 bheka iMpi yaseModlin  <response>: Izindaba 