Complex sentence: Special Operations Group (SOG) is the department within SAD responsible for operations which include the collection of intelligence in hostile countries and regions, and all high threat military or intelligence operations with which the U.S. government does not wish to be overtly associated.
Split into simpler sentences: Special Operations Group (SOG) is the department within SAD responsible for military operations. These operations include the collection of intelligence in hostile countries and regions, and all high threat military or intelligence operations with which the U.S. government does not wish to be overtly associated.