In a Los Angeles courtroom on Monday, U.S. District Judge John F. Walter also sentenced Zhou to a yearlong period of supervised release and ordered him to pay $225 in fines and special assessments.

A 39-year-old man who illegally flew a drone over Vandenberg Space Force Base and photographed the military complex was ...

Mr. Zhou’s conduct, while clearly wrong, was not motivated by a sinister desire to undermine the U.S. government or military.