The principal mission of the MH-60R multi-mission helicopter is to protect the fleet from submarines and surface vessels and provide a maritime strike capability.
MH - 60r多任务直升机的主要任务是保护潜艇和水面舰队，并提供海上打击能力。
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India had signed a deal worth USD 2.1 billion in 2009 with Boeing for procuring eight P-8I maritime surveillance aircraft to augment and replace its Russian-origin fleet.
The Chinese naval fleet has so far carried out 102 missions to protect 555 vessels in the waters off Somalia, according to the China Maritime Search and Rescue Centre.