* I doubt you'll get 737's crossing the Atlantic, by the way, so I'd have thought that P8's would fail to benefit from any conceivable camouflage effect...they'll be the only version of the 737 out over the oggin.
The US Navy and US Air Force both operate the C-40 of which is the airframe the P-8 will be originating from i believe.
The C-40's cross the Atlantic everyday replacing the old C-9 in the VIP transport role.
Also, a few other nations use the BBJ (Of which the C-40 derived from i think) and this is a VIP/Private Exec variant of the B-737. Again flown everyday over the North Atlantic on the NAT Tracks.
However most of the C-40s are bright blue and white (or white) unlike the P-8