The invasion of the Philippines began with the Leyte landings 20 October, and 4 days later Hopewell arrived with a reinforcement group.

The callout time for the reinforcement group is one to six hours and there are 87 active groups in peace time.

There, she switched to a reinforcement group carrying Marine aircraft and personnel to Midway in anticipation of Japanese efforts to take that key outpost.

Following a brief period in port, Auriga was assigned to a reinforcement group bound for Biak, Schouten Islands.

I tried everything: a reinforcement group, group-hugging, working out loves and hostilities on each other.

For the past few years we have been happily hiving ourselves off into self-congratulatory reinforcement groups.

Howorth arrived with the first reinforcement group four days later on the 13th, which came under kamikaze attacks while en route.

Although the Japanese attacks failed to inflict significant damage, they did prevent CAF bombers from finding and attacking the reinforcement group.

As the reinforcement group transited the Slot, relays of 11th Air Fleet Zeros from Buin provided escort.

The naval force was designated Task Force 77 and was organised into two attack groups, four reinforcement groups, a support group and an escort carrier group.