As the US military bolsters its presence in the Pacific with a new military base – its first in 70 years – on the island of Guam, Utah Senator Mitt Romney gets candid with Ian Bremmer in an exclusive GZERO World interview.

"We have to be careful not to provoke China at a time when Taiwan is not as militarily ready as we might like to see," Romney tells Ian from his Senate office in Washington.

"And frankly, we're not as militarily ready as we would like to see in the Pacific. Our Navy is smaller than it should be. Some of our systems are not up to date."