Sex and the High Command

Sex and the High Command is a 1970 semi-humorous novel by John Boyd.
In Sex and the High Command, a drug is invented (Vita-Lerp) that permits parthenogenetic reproduction, and acts like a viagra for women to boot. Men are superfluous, and a women's movement decides to eliminate most or all of them. The protagonist, Captain Benjamin Franklin Hansen, is forced to choose between the High Command, which is seeking a military solution to the women's movement, and his love for and trust in his wife and daughter.
It is a good-natured take on the sex wars.