Earlier, External Affairs Minister Sushma Swaraj had also raised India's concerns over North Korea's nuclear proliferation and demanded that those responsible for it be held accountable.
Defence minister Nirmala Sitharaman on Tuesday said that "social media and cyberspace" have increased the threat of terrorism, as they can be used to manipulate people's minds.
The two-day ADMM-Plus meeting will open Monday in Clark, Pampanga, two hours north of Manila, and will bring together the defense chiefs of the Association of Southeast Asian Nations (ASEAN) and eight dialogue partners.
North Korea has launched a series of ballistic missiles that potentially can strike the U.S. mainland and recently conducted its largest ever underground nuclear explosion, triggering a fresh round of sanctions on Pyongyang from the worldwide community.
The Philippines had approached the United Nations Convention on the Law of the Sea (UNCLOS) concerning certain issues in the South China Sea including the legality of China's "nine-dotted line" claim. India supports freedom of navigation, overflight and commerce throughout the region.
She said that terrorism and radicalization pose one of the most immediate and serious security challenges to the societies. To improve counterterrorism cooperation among ASEAN members, the defense secretary proposed to convene a tabletop exercise to discuss lessons learned from the campaign to defeat ISIS, as well as a workshop on regional terrorist threats at the Asia-Pacific Center for Security Studies, she said. "We fully recognise the role of joint mechanisms with our partners and the role of global and regional forums in fighting this menace", the Defence Minister said.
The forum ADMM-plus includes defence ministers from the 10 Asean member countries and counterparts from countries such as Australia, China, India, Japan, US, South Korea, New Zealand and Russian Federation.