Two pieces of news about P-8’s:
A P-8A Poseidon aircraft departs Boeing Field in Seattle on Nov. 20, 2014. A P-8 was patrolling what the U.S. considers international airspace over the South China Sea on May 20, 2015, when it was warned away by a Chinese navy ground dispatcher at Fiery Cross Reef. China considers the reef its territory.
Boeing is also courting the UK, which is believed to be looking at acquiring P-8s with which to rebuild its anti-submarine warfare capabilities. These were seriously impaired following the abrupt withdrawal of the Nimrod MR.2 maritime patrol force in 2010 and axing of the planned Nimrod MRA.4 replacement program, leaving a capability gap which Russian surface vessels and submarines have exposed during recent incursions into British waters