Military modernisation in Southeast Asia in the Indo-Pacific strategic context

The relationship between Southeast Asia’s military modernisation and the Indo-Pacific arena seems to be self-evident in the geostrategic sense, but it is necessary to address their linkage through several questions: what is the core theme in the Indo-Pacific arena? What is the linkage of Southeast Asia to the core theme? What is the role(s) of military modernisation in Southeast Asia to the linkage? How would the situation in the Indo-Pacific area affect Southeast Asia’s military modernisation