detachment

The action of detaching; separation.

The state of being detached or disconnected; insulation.

Indifference to the concerns of others; disregard; nonchalance; aloofness.

Absence of bias; impartiality; objectivity.

The separation of a military unit from the main body for a particular purpose or special mission.

The unit so dispatched.

A permanent unit organized for special duties.

Any smaller portion of a main body separately employed.