 On 17 September, the city had 14,000 soldiers and militia volunteers, but only 6,500 of them were armed.Before the battle, the numbers of armed soldiers rose slightly as some disorganized units trickled in, but the number of unarmed volunteers decreased, as Okulicz-Kozaryn ordered unarmed volunteers not to participate in any hostilities.Before the Soviets arrived, the Polish forces formed about 10 infantry battalions, supported by approximately 15 light artillery and anti-tank guns and about five anti-aircraft guns.