David Gerrold’s 1983 A Matter for Men is the first volume in his as yet unfinished War Against the Chtorr series.
Supine beneath the treaty terms inflicted on America by the Soviets, Chinese, and the rest of an overpopulated world — or just possibly, victorious in a game of fourth dimensional geopolitical chess — America was still recovering from the economic side-effects of surrender when disease made the situation unimaginably worse.
Plague after plague swept the planet, killing four and a half of Earth’s six billion. Young Jim McCarthy’s family tried to wait out the disaster in their mountain cabin, but misjudged the end of the crisis. With half his siblings dead and his family broken by trauma, Jim is drafted into the nation’s Teamwork Army. He soon discovers that the challenge facing America and other, lesser nations, isn’t just disease. It’s an alien invasion.