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QUOTES AND PHRASES
A casus belli is an act or an event that either provokes or is used to justify a war.[1][2] A casus belli involves direct offenses or threats against the nation declaring the war, whereas a casus foederis involves offenses or threats against its ally—usually one bound by a mutual defense pact.[3][4] Either may be considered an act of war.[5] A declaration of war usually contains a description of the casus belli that has led the party in question to declare war on another party. <
Wikipedia contributors, "Casus belli," Wikipedia, The Free Encyclopedia,
ABOUT THE LATIN LANGUAGE