Some photos from Twitter,

“The crew of USCG Cutter Oliver Henry participated in an integrated exercise alongside Navy Maritime Expeditionary Security Squadron TWO in the Philippine Sea last month under the direction of U.S. 7th Fleet.”

The Navy vessel is apparently a MkVI patrol boat.

USCGC Oliver Henry is the second FRC to be homeported in Guam, so the Philippine Sea is practically just out the front door.

The location of the Philippine Sea. (Section of a world map from the CIA World Factbook)

Thanks to Walter for bring this to my attention.