Defense Secretary Pete Hegseth said the U.S. is 'postured defensively' as more warplanes and a massive aircraft carrier moved to the region.

As the Iran-Israel conflict intensifies, the U.S. deploys the USS Nimitz aircraft carrier along with support tankers to bolster military readiness.

U.S. aircraft carrier USS Nimitz left the South China Sea on Monday morning heading west, according to data from ship tracking website Marine Traffic, after a reception for its planned port call in central Vietnam was cancelled.