 The following year, Pope Pius XII formally established ICMC through a papal letter, Exsul Familia, which brought worldwide attention towards the needs of migrants and invoked the support of the Catholics to welcome and assist foreign nationals fleeing their home countries.In its early years, the work of ICMC focused on the administration of migrant travel loan funds.ICMC soon gained comprehensive expertise in assisting the migrants and increased its network of member organizations and local partners, thus becoming a worldwide movement.