The second wave of exterminations in the Soviet Union met with armed resistance in some areas, though the chance of success was poor. Weapons were typically primitive or home-made. Communications were impossible between ghettos in various cities, so there was no way to create a unified strategy. Few in the ghetto leadership supported resistance for fear of reprisals on the ghetto residents. Mass break-outs were sometimes attempted, though survival in the forest was nearly impossible due to the lack of food and the fact that escapees were often tracked down and killed.