Actually, Indo-Pacific is not a new concept. During the Obama administration, the concept of Indo-Pacific was also mentioned many times, but the Obama administration pursued the Asia-Pacific rebalancing strategy, and the United States always wanted to include the Indian Ocean region in the East Asia strategy.
Indo-Pacific strategy:
The importance of cooperation with allies was mentioned. In the field of security, the strategy mentioned Australia, Japan, South Korea, the Philippines and Thailand, and said that it would deepen its alliance with them according to the treaty.
This strategy also makes it clear that "comprehensive containment" generated by strengthening relations with allies will become the basis of the US-India-Pacific security strategy.