Brigade's most important operations relied on use of improvised explosive devices.

Their operation, from what we know, relies on speed and surprise.

With the operation of the engines so heavily relying on automation, safety is a great concern.

Its operations rely on donations and "in kind" services.

His operation is relying so far on the work of committees working independent of the Kerry campaign.

The operation essentially relies on mechanical energy and physical principles.

The operation on Wednesday relied on more leg work than technology.

Its operations outside the country rely mainly on foreign nationals.

Officials say such operations rely solely on unsolicited telephone calls to potential clients.

Military operations relied on a well trained disciplined force.