More like Alternate Generals III

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The Guns of the SouthNovel
Harry Turtledovestandalone novel1992
War & military, tense in tone, set in north america and 19th century.
Worldwar UniverseSeries
series8 books1994
Alien invasion, tense in tone, about aliens.
Start with In the Balance →
The War in the AirNovel
H. G. Wellsstandalone novel1908
Military science fiction, tense in tone, set in early 20th century and europe.
The Proteus OperationNovel
James P. Hoganstandalone novel1985
Time travel, tense in tone, set in mid 20th century.
Axis of TimeSeries
series7 books2004
Military science fiction, tense in tone, set in mid 20th century.
“Thousands died in the chaos, but the ripples had only begun.”
from the catalogue
Start with Weapons of Choice →
The Zap GunNovel
Philip K. Dickstandalone novel1967
Satire, dark in tone, set in near future and north america.