In April, the Pentagon issued a NOTAM, or "Notice to Airmen" warning of "unauthorized laser activity" resulting in minor injuries to an unspecified number of pilots over Djibouti. The lasers originated from a Chinese military base in the African country, just 8.3 miles from the American base.
Now officials are reporting similar laser attacks in the East China Sea, where the People's Liberation Army Navy and Chinese commercial vessels operate. Multiple officials told the WSJ that lasers were directed at American military aircraft from fishing vessels and shore.
There have been more than two-dozen incidents in the region since September 2017, officials said. Attacks are becoming more frequent, as the perpetrators are using a wide variety of laser frequency bands.