The term 'attack order' is a military command given to initiate an offensive action. The crossword solutions for this term are SIC (3 letters), CHARGE (6 letters), and SICEM (5 letters). SIC stands for 'Seek, Identify, and Destroy', which is a military tactic used to locate and eliminate enemy forces. CHARGE is an acronym for 'Close Assault, Rapidly Gain, Engage, and Secure', which is a strategy used to quickly take control of an area. Finally, SICEM stands for 'Secure, Isolate, Control, Engage, and Manage', which is a method used to secure a location and manage any hostile forces.