Strategic intelligence (STRATINT) pertains to the collection, processing, analysis, and dissemination of intelligence that is required for forming policy and military plans at the national and international level. Much of the information needed for strategic reflections comes from Open Source Intelligence. Other sources include traditional HUMINT, Signals intelligence including ELINT, MASINT which overlaps with SIGINT/ELINT to some degree, and 'National technical means of verification'. The father of intelligence analysis and of the strategic intelligence concept was Sherman Kent, in his seminal work Strategic Intelligence for American World Policy, first published in 1949. For Kent, strategic intelligence is ”the knowledge upon which our nation's foreign relations, in war and peace, must rest".