military intelligence section 5 การใช้

• MI5 _ standing for Military Intelligence Section 5 _ was founded in 1909 and in both world wars its job was counter-espionage.
• During World War I in 1916, the two sections underwent administrative changes so that the internal counter-espionage section became the Directorate of Military Intelligence Section 5 ( MI5 ) and the foreign section became the Directorate of Military Intelligence Section 6 ( MI6 ), names by which the Security Service and Secret Intelligence Service are frequently known in popular culture today.