Japanese Prime Minister Shinzo Abe has met with Philippine President Benigno Aquino III in Tokyo.
The two are calling for enhanced security ties between the two countries.
Abe says Japan and the Philippines are coordinating closely with one-another when it comes to the regional situation.
A number of observers have suggested the Philippines is trying to secure Japan as an ally, as both countries are involved in maritime disputes with China.
Yang Xiyu is a researcher at the China Institute of International Studies.
"Japan's dispute with China is historical-rooted, while the Philippines' dispute with China on the sea is an result of its maritime expansion against consititution. These issues are different in nature, and a coliation based on this will have little impact in solving the disputes."
Also as part of the meeting Aquino has voiced his support to the Abe government's attempts to change the constitution to allow for an offensive military force.
