AgentAdamHenderson

Turtledove's "Road not Taken" in 1945. In this world, another bunch of pre-scientific aliens descended upon British India in October, 1945, with plunder and conquest in mind, only to run into machine guns, anti-aircraft artillery, overlapping fields of fire, etc. The dark red, somewhat slimy and rather appendage-gifted Ssslethy being rather less cute than the teddy-bearish Roxolani, and the Indian Army of 1945 being a trifle more ruthless than the US army of 2039, none of the invaders survived: however, the antigravity generator for one of their shuttles was captured intact. Earth scientists have spent the last 65 years banging their heads