Based on the Coast Guard Historian’s timeline, https://www.history.uscg.mil/research/chronology/
With inspiration from Mike Kelso

Appearing very different from its last Greenland visit in 1884, the USS Bear returned in 1944. Unlike in 1884, the Bear relied on a Coast Guard crew during World War II. As part of the Greenland Patrol, it cruised Greenland’s waters and, in October 1941, brought home the German trawler Buskø, the first enemy vessel captured by the U.S. in WWII. (Coast Guard photo)

1941  The Navy formally established the Greenland Patrol by combining the South Greenland Patrol with the three cutters of the Northeast Greenland Patrol.

USCGC Polar Sea

1985  CGC Polar Sea arrived home to Seattle after a voyage through the Northwest Passage by way of the Panama Canal, the east coast, and then Greenland, sparking an international incident with Canada.  She completed the first solo circumnavigation of the North American continent by a U.S. vessel and the first trip by a Polar-Class icebreaker.  She also captured the record for the fastest transit of the historic northern route.  She had departed Seattle to begin the voyage on June 6, 1985.