The term ‘In God, We Trust’ is related to which country?

The motto "IN GOD WE TRUST" was placed on United States coins largely because of the increased religious sentiment existing during the Civil War.Secretary of the Treasury Salmon P. Chase received many appeals from devout persons throughout the country, urging that the United States recognize the Deity on United States coins.From Treasury Department records, it appears that the first such appeal came in a letter dated November 13, 1861.- Source: US Department of Treasury.