
The 76th Landwehr Regiment was to attack the south. The 18th Regiment was deployed in the main direction along the highway and railway. The 11th Landwehr Division was singled out for the new general attack. Russian defences were manned by 500 soldiers of the 226th Infantry Regiment Zemlyansky, and 400 militia. The Germans launched a full-frontal offensive on Osowiec Fortress at the beginning of July the attack included 14 battalions of infantry, one battalion of sappers, 24–30 heavy siege guns, and 30 batteries of artillery equipped with poison gases led by Field Marshal Paul von Hindenburg.



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