I saw something similar over Lake Havasu City, Az back in March. It started with two F-15’s zig-zagging around the sky. That went on for about ten minutes before they disappeared behind cloud cover. When they emerged, I noticed they were chasing (or following) an object that resembled the white tic-tac object. Other people in my apartment complex watched the jets, but I was the only one who watched long enough to catch the white object.
Naturally I’m subject to ridicule now. Whether the object was military or UFO, I don’t know. But it was definitely there and the F-15’s were very interested.