"We need to know what's going on around us. That's maritime domain awareness," del Rosario said in answer to a question following a speech at The Heritage Foundation think tank.
"And we also need to deter any additional incursions into our seas where we have sovereign rights," the chief Philippine diplomat said, referring to its dispute with China in the South China Sea.
"We are submitting a list of hardware that the US can help us out with. This would be in terms of patrol vessels, patrol aircraft, radar systems, coast watch stations," del Rosario said.
"We're looking for assistance from other international partners who have also been very forthcoming," he added.
In his speech, del Rosario said the Philippines was strengthening its partnerships with Japan, Australia, South Korea and others in areas like maritime security, humanitarian assistance and disaster relief.
While awaiting new hardware, he said it is important for the Philippines and its treaty ally the United States to continue to conduct military exercises "in a better way, in more locations, in a more frequent manner."
The two nations, which completed extensive war games earlier this month, are bound by a mutual defense treaty in which the United States has pledged to come to the aid of its weaker ally if it faces military aggression. (www.rappler.com)