and their work consolidated under the newly created Board of National Missions. Missions After the Old School–New School split, the Old School General Assembly created the Board of Foreign Missions. Missions were started in Africa, Brazil, China, Colombia, India, Japan, and Thailand. When the New School (which had been partnering with the Congregationalist ABCFM) reunited with the Old School in 1870, the Board of Foreign Missions took over the ABCFM's operations in Iran, Iraq, and Syria. The reunited denomination also expanded missions into Korea, Central America, South America, and the Philippines. The Board of Home Missions carried on work among Native Americans, Jews, and Asian immigrants. In the words of Frederick J. Heuser, Jr. of the Presbyterian Historical Society, the PCUSA's missionary work established "indigenous churches, a variety of educational facilities, hospitals, orphanages, seminaries, and other institutions that reflected the church's educational, medical and evangelical ministry." Ecumenical relations Along with other mainline Protestant churches, the Presbyterian Church in the USA was a founding member of the Federal Council of Churches (a predecessor to the National Council of Churches) in 1908. During World War I, the PCUSA was a leading contributor to the work of the Federal Council's General War–Time Commission, which coordinated chaplaincy and supported the war effort. From 1918 to 1920, the church participated in a short-lived international ecumenical organization called the Interchurch World Movement. See also List of Moderators of the General Assembly of the Presbyterian Church in the United States of America References Notes Bibliography . Further reading External links Presbyterian Historical Society PCUSA Changes to the Westminster Confession 1789 establishments in Pennsylvania Orthodox Presbyterian Church Presbyterian Church (USA) predecessor churches Presbyterian denominations in the United States Presbyterian organizations established in the 18th century Protestant denominations established in the 18th century Religious organizations established in 1789