Another Future Histories Parallel

In Robert Heinlein's Future History, the Howard Families leave the Solar System and experience problems with inhabitants of two extra-solar planets but do not engage in any interstellar military conflicts although Heinlein most assuredly does praise such conflicts in Starship Troopers.

However, in four other future history series:

James Blish's Colonials fight the Vegan Tyranny;

Poul Anderson's Solar Commonwealth fights the Baburites;

Larry Niven's UN fights the kzinti;

the Star Trek Federation fights the Klingons etc.

Star Trek is the best known but not the best. Trekkies need to read Heinlein, Blish, Anderson and Niven. They should find what they like and more in prose sf.