detachment
The action of detaching; separation.
The state of being disconnected; insulation.
Indifference to the concerns of others; disregard; nonchalance; aloofness.
Absence of bias; impartiality; objectivity.
(military) The separation of a military unit from the main body for a particular purpose or special mission.
(military) The unit so dispatched.
(military) A permanent unit organized for special duties.
Any smaller portion of a main body separately employed.