A recent uptick in sightings of unidentified flying objects — or as the military calls them, “unexplained aerial phenomena” — prompted the Navy to draft formal procedures for pilots to document encounters, a corrective measure that former officials say is long overdue. “Since 2014, these intrusions have been happening on a regular basis,” Joseph Gradisher, spokesman for office of the deputy chief of naval operations for information warfare, told The Washington Post on Wednesday. Recently, unidentified aircraft have entered military-designated airspace as often as multiple times per month. “We want to get to the bottom of this. We need to...