The soldiers were fired up with fervor, morale soaring.
Tips
history
Synthesized from Han and Tang sources: Li Ling's 《录别诗》 (Han) "悲意何慷慨" and Liu Zongyuan's 《上权舆补阙温卷决进退启》 (Tang) "今将慷慨激昂". The Tang phrasing became standard.
usage
Typically describes rousing public speech, patriotic moments, rallying cries. Positive when the cause is noble; can tilt mocking when the fervor is performative or empty.