Two Polish sailors watch from the pier as crew members aboard the guided missile cruiser USS HARRY E. YARNELL (CG 17) man the rail upon their ship's arrival in port. The YARNELL and the guided missile frigate USS KAUFFMAN (FFG 59) are visiting Poland in conjunction with BALTOPS '90, a NATO exercise in the Baltic Sea, and their port call represents the first visit by United States Navy vessels since 1927