Constant Phoenix.

This is coolbert:

Preparations underway! The game is afoot! Everyone make ready!

From the military oriented newspaper Stripes and the article by Matthew M. Burke and Chiyomi Sumida and the tip from Captain Al.

"Nuke-sniffer aircraft arrives on Okinawa as tensions rise on Korean peninsula"

"CAMP FOSTER, Okinawa — A U.S. aircraft that specializes in detecting radioactive debris after the detonation of a nuclear device has arrived on Okinawa amid rising tensions on the Korean peninsula."

The Constant Phoenix "sniffer" warplane deploys to Okinawa in anticipation of a North Korean nuclear test? An analysis of nuclear particles as might be release from an atomic detonation will enable American physicists to obtain valuable information otherwise unobtainable.

Combat Phoenix last we hear was active over the Barents Sea. But of that mission and results no more was ever heard.

See previous entries regarding Combat Phoenix:

http://militaryanalysis.blogspot.com/2017/02/cobra-55.html

http://militaryanalysis.blogspot.com/2017/03/sniffer.html

coolbert.