clarion call

Noun

 * 1)  Appeal, urgent call to action.
 * 2) * 1989, Antony Robin, Jeremy Kushner, Tony Kushner, Kenneth Lunn, University of Southampton. Dept. of History, Traditions of intolerance: historical perspectives on fascism and race discourse in Britain:
 * Our clarion call is "Equal Rights for all: Special Privileges to None".

Usage notes
Frequently used in Christian contexts.

Translations

 * Faroese: trompetblástur
 * French: appel du clairon
 * German:, ,
 * Italian:
 * Russian: боево́й клич