Taiwan's defense ministry said it detected three ships from the Chinese navy, including the Shandong aircraft carrier, passing through the Taiwan Strait.
This year's Balikatan exercises between the treaty allies are the largest since the two sides started joint military combat-readiness exercises in 1990s.
The Air Force Thunderbirds over Cleveland, soldiers firing a Carl Gustav in Alaska, sailors transiting the Taiwan Strait and more in this week's Frontline Photos.