Pact sounds more frenchy and also more specific than. Also, pact was from latin word pactum and then became frech, and british people likes to steal words from their neighbours. 华沙条约组织(又称华沙公约组织、简称华约组织或华约,英语:warsaw pact或warsaw treaty organization;俄语:организация варшавского договора)是为对抗北大西洋公约组织而.