bǎo jìng ān mín
安民:安定人民生活。保卫国境,使人民安居乐业
明·施耐庵《水浒传》第71回:“但愿共存忠义于心,同著功勋于国,替天行道,保境安民。”
作谓语、宾语;指军队的职责
maintain peace and security in the territory under one's control--euphemism for armed neutrality in civil war