Off World - J F Holmes - Bog

When the Gate connecting America's first colony in the stars was shattered by a nuclear war back home, seventy thousand civilians found themselves dependent on the US Army's 9th Infantry Regiment for their survival. Barely had the shock of their cut off from Earth began to be understood when a long planned and ferocious assault was launched by their alien enemies, a genetically modified race of iron age barbarian creatures. Only by valiant effort and shedding precious human blood was disaster averted. Now that the immediate danger has passed, the colony and its leadership looks to survival. Expeditions are sent south to trail a defeated enemy and new allies are sought. As they try to cope, one last, desperate message from Earth arrives, bringing, if not help, then hope.