In addition to the 14 permanent department secretaries, Cabinet meetings might include any of six “as-needed” members, depending on the needs of the president. For instance, in extraordinary cases of disaster and economic recession or when prioritized legislation is being considered, the president may request one or more as-needed attendees like the administrator of the Environmental Protection Agency, chairperson of the Council of Economic Advisors, US ambassador to the United Nations, White House chief of staff, Office of Management and Budget director, and the US Trade Representative ambassador.
The division of labor leads to specialization which leads to surplus which leads to development of trade between countries to get what they need using their surplus
The Spanish missions in the Americas were Catholic missions established by the Spanish Empire during the 16th to 19th centuries in the period of the Spanish Colonization of the Americas. These missions flanked the entirety of the Spanish colonies, which extend from Mexico and southwestern portions of current-day United States to Argentina and Chile.