Caller, and apparently several other people, witnessed multiple strange craft streaking through the night sky in vicinity of Denmark and Mirabel, WI. Craft were seen to streak overhead, as well as to descend vertically, as fast as a meteorite, then stop suddenly just above the ground. During the last 30 minutes of the sighting, aircraft, which appeared to be U. S. military craft, were seen either pursuing, or chaperoning, the strange craft.. Objects were cone-shaped, with a red nose and a green tail (sic).