Fare la guerra vs. guerreggiare
Fare la guerra and guerreggiare are two Italian expressions that both mean to wage war, but they have subtle differences in usage and connotation.
Fare la guerra
B1Fare la guerra is a more literal and common way to express to wage war. It is a phrasal verb that combines fare (to do) with la guerra (the war).
L'esercito si prepara a fare la guerra contro il paese nemico.
(The army is preparing to wage war against the enemy country.)
Il re ha deciso di fare la guerra per espandere il suo regno.
(The king has decided to wage war to expand his kingdom.)
Guerreggiare
B2Guerreggiare is a single verb that means to wage war or to be at war. It often implies a more continuous or ongoing state of warfare.
Le due nazioni hanno guerreggiato per decenni.
(The two nations have been at war for decades.)
I clan rivali continuano a guerreggiare per il controllo del territorio.
(The rival clans continue to wage war for control of the territory.)
Summary
While both fare la guerra and guerreggiare mean to wage war, fare la guerra is more commonly used and can refer to specific instances of war-making. Guerreggiare often implies a more prolonged state of conflict and can be used in more figurative contexts. Fare la guerra is more neutral, while guerreggiare can sometimes carry a slightly more literary or formal tone.