In an alarming tit-for-tat June 9, Taiwan's defense ministry said that several Chinese fighter jets briefly entered the country's air defense identification zone, and the US took the unusual move of flying a C-40A military transport plane over Taiwan. The US overflight was assailed by Beijing's Taiwan Affairs Office as "an illegal act and a seriously provocative incident." This comes as the US is deploying two aircraft carrier strike groups to the Pacific—the San Diego-based USS Nimitz and the Yokosuka-based USS Ronald Reagan. These join the USS Theodore Roosevelt, also based in San Diego but now patrolling the Philippine Sea near Guam. This marks the first time in three years that three US strike gorups have been simultaneously deployed to the Pacific, in what is being seen as an explicit warning to China. The triple deployment follows accusations by Lt. Gen. Kevin Schneider, commander of US forces in Japan, that China is using the coronavirus crisis as a cover to push territorial claims in the South China Sea. "Through the course of the COVID crisis we saw a surge of maritime activity," Schneider told Reuters. (The Hill [20], The Hill [21], USNI News [18], Reuters [22], AP [23])