heavy artillery

n. powerful or persuasive persons or things. (The same as big gun.) Finally, the mayor brought out the heavy artillery and quieted things down.

Name	Pronounced	Usage
Ioannis	-	Greek
Rosie	ROZ-ee	English
Hye	hye	Korean
Erland	ER-lahnd (Swedish)	Swedish, Danish
Moses	MOZ-əs (English)	English, Jewish, Biblical, Biblical Latin
Arjan	AHR-yahn	Dutch