The Pentagon will focus on building up bases in Guam and Australia to better prepare the US military to counter China, a senior defense official said on Monday.

To counter China, the review directs the Department to enhance "infrastructure in Guam and Australia," and to prioritize "military construction across the Pacific Islands," the official said, as well as "seeking greater regional access for military partnership activities."

"In Australia, you'll see new rotational fighter and bomber aircraft deployments, you'll see ground forces training and increased logistics cooperation, and more broadly across the Indo-Pacific, you'll see a range of infrastructure improvements, in Guam, the Commonwealth of the Northern Mariana Islands and Australia," Karlin said during the briefing.

The review also did not include "functional capabilities" like nuclear, space and cyber, because those are being addressed in other Department specific reviews, the official said.