A message that a strange, unseen force called "supervision" is responsible for your delay.
The same forces were calling for freedom and democracy.
After suffering heavy casualties, Japanese forces called for a general retreat.
Israeli forces called on all the Palestinians to come out of the compound, of which the prison is a part.
The end was at hand; the forces of destruction called for his finish in an explosion of violence.
Because if he were taken prisoner, the forces he'd invoked might call at the wrong address to pick him up.
Cadets are grouped together in what the force calls "troops".
The mood, the key relationships and the forces called for make this clear.
After being fired on, the special forces moved back and called for backup.
Such a force would call too much attention to itself.