U.S. President Joe Biden participates in a welcome ceremony hosted by Vietnam's Communist Party General Secretary Nguyen Phu Trong at the Presidential Palace in Hanoi, Vietnam, Sunday, Sept. 10, 2023.
Hanoi, Vietnam CNN  — 

President Joe Biden arrived at Chinese leader Xi Jinping’s doorstep on Sunday with a deal in hand to draw yet another one of China’s neighbors closer to the United States.

In just the last five months, Biden has hosted the Philippines’ president at the White House for the first time in over a decade; he has fêted the Indian prime minister with a lavish state dinner; and he has hosted his Japanese and South Korean counterparts for a summit ripe with symbolism at the storied Camp David presidential retreat.

At each turn, Biden’s courtship and his team’s steadfast diplomacy have secured stronger diplomatic, military and economic ties with a network of allies and partners joined if not by an outright sense of alarm at China’s increasingly aggressive military and economic posture, then at least by a growing sense of caution and concern.

The latest page in the US’s Indo-Pacific playbook will come via the establishment of a “comprehensive strategic partnership” that will put the US on par with Vietnam’s highest tier of partners, including China, according to US officials familiar with the matter.