Montaukers will proudly wave the American flag this weekend in honor of Memorial Day. The hamlet’s three-day event is in its third year. The services begin at 5 p.m. on Saturday at the Montauk Coast Guard Station, where a fish-and-chips dinner honoring veterans will be held on the grounds overlooking Lake Montauk. Veterans eat free. Guests will be asked for a $20 donation, $10 for children 10 and under.