He also said he would also hold a bilateral meeting with Japanese Prime Minister Fumio Kishida with an aim to strengthen the India-Japan Special Strategic and Global Partnership.
For trilateral cooperation to work in dealing with China and North Korea, improving Japan-South Korea relations is key, but many outstanding issues need to be addressed
North Korea has said the US overtures are insincere because Washington maintains "hostile policies" such as military drills and sanctions.
The decision was made at the ASEAN Defense Senior Officials’ Meeting on May 17.
He also said the five major developing countries are expected to firm up their beliefs, brave storms and waves, take real action to promote peace and development.
Their admission requires a unanimous vote of Nato's 30 member states, and Ankara has already signalled its opposition.
US and South Korea say North Korea could conduct missile and nuclear tests during Biden’s first visit to Asia.
The US-ASEAN summit was only the second meeting of its kind since February 2016.
The writer says Beijing stands to gain from a growing convergence of views with key states and the opening of a power vacuum in the region.
They also committed to signing a Comprehensive Strategic Partnership during the 10th Asean-US Summit to be held in Cambodia in November.