"As the United States deepens its relationship with the Philippines, it's important for regional security that Japan join in," a Japanese defence ministry source with knowledge of internal discussions on national security told Reuters. At a press briefing last week, Neil Imperial, the Philippines Assistant Secretary for Asian and Pacific Affairs, said Marcos wanted to "facilitate closer defence, security, political, economic and people-to-people ties" while in Japan. That sentiment is shared in Tokyo, which has been deepening security ties with nations that view China with concern. Those deals provide a framework for how Marcos and Kishida could also forge deeper military ties to counter their common adversary, say experts. "The Philippines is a critical security partner for Japan," said Narushige Michishita, a professor at the National Graduate Institute for Policy Studies (GRIPS) in Tokyo.

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