three objects spotted in sky over rural area of wisconsin back in the 80's

as i pulled out of my driveway, i looked east for traffic, and noticed 3 very long cigar shapes in the eastern sky. i drove to my neighbor's and picked her up and we both saw them. we kept seeing them as we drove into town, a distance of 4 miles, they didn't move or change shape at that time. we sat and watched them for half an hour, suddenly they each seperated into two, now there are six dark shaped cigar things in the sky. again, another larger craft suddenly appeared to the left of the formation, and the six rotated into the bottom end of the larger craft and it rotated to the east and took off into the sky, leaving no trail, no vapor trail, nothing. this took place in the month of november, a clear morning, and neither one of us had been drinking or using drugs, as it was a work day and early in the morning.
Source of report indicates that the date of the incident is approximate.  PD