A History of Short Words

From the New York Times Crossword Puzzle

ATWAR

Sun, 21 Jan '24
In conflict
Sat, 2 Dec '23
Like the Galactic Empire and Rebel Alliance, in science fiction
Sat, 8 Jul '23
Feuding big-time
Thu, 25 May '23
Like much of Europe beginning in 1939
Mon, 23 Aug '21
Battling
Sun, 22 Aug '21
Battling
Mon, 29 Mar '21
Fighting, as countries