Kammala jumla mai zuwa: Bayan Operation Barbarossa ya fara, an saki Beylin daga makarantar a watan Yulin 1941 kuma an sanya shi a hannun Majalisar Soja ta Arewa maso Yammacin Yamma, inda aka nada shi babban mataimakin shugaban sashen ayyukan ma'aikatan rundunar sojojin 27. A wannan matsayin, ya yi yaƙi a yaƙe-yaƙe na tsaro a Yammacin Dvina, a kan Velikaya a kan layin Vybori da Opochka, da kuma kan Lovat a yankin Kholm. A watan Agusta sojojin sun yi yaƙi a cikin Staraya Russa. Daga baya, raka'ayinta sun yi yaƙi a cikin yaƙe-yaƙe na tsaro a yankin Demyansk kuma a farkon Oktoba sun dakatar da farmakin Jamus a kan layin Lake Velye da Lake Seliger. Daga ranar 14 ga Janairu, 1942, Laftanar Kanar Beylin ya yi aiki a matsayin mataimakin shugaban ma'aikata na rundunar soji ta 4, wacce ta yi yaƙi a cikin
Toropets<unk>Kholm na kai hari a matsayin wani ɓangare na Kalinin Front. Tsakanin 18 ga Mayu 1942 da Satumba 1943, ya kasance shugaban ma'aikata na Rundunar 'Yan bindiga ta 2 a kan Kalinin Front, wani ɓangare na Shock na 3, 22nd, da 29th Armies. Sannan-Colonel Beylin ya yi aiki a matsayin kwamandan kwamitin na wucin gadi tsakanin 29 ga Satumba da 24 ga Oktoba, 1942, yana jagorantar shi a yaƙe-yaƙe a yankin Nevel a matsayin wani ɓangare na Rundunar Sojoji ta 3. Tsakanin Nuwamba 1942 da Janairu 1943, rundunar ta yi yaƙi a cikin Velikiye Luki Offensive.