India, Jan. 30 -- The Philippine Navy (PN)'s brand-new offshore patrol vessel, the future BRP Rajah Sulayman (PS-20), and its five sister ships, which will be delivered within the next two to three years, can be optimized for anti-submarine warfare (ASW) missions.

Navy spokesperson Captain Marissa Martinez, in an interview with the Philippine News Agency (PNA) on Friday, said this is possible as these ships have "mission modules" that allow them to carry a variety of missions.

ASW is the naval mission where surface combatants or forces are tasked with detecting, tracking, and, if necessary, destroying hostile submarine contacts.

"The mission modules for the OPVs I mentioned include ASW," she added.

Aside from ASW, other mission module...