evidence: The U.S. military shot down three unidentified objects in a single weekend. Why are America's skies so filled with UFOs all of a sudden? In the span of two weeks in February 2023, U.S. military pilots shot down four mysterious objects spotted over the United States and Canada. [...] The other three objects — which include a car-size cylinder shot down over Canada's frigid Yukon territory and a strange octagonal object shot into the waters of Lake Huron — remain unidentified, and were all destroyed between Feb. 9 and 12. These three objects were less sophisticated than the spy balloon, White House officials said in a Feb. 13 press briefing, and floated between altitudes of 20,000 and 40,000 feet (6,000 and 12,000 m). However, they were flying in airspace used by commercial airplanes, which added to the security risk, government officials said.