The Coast Guard, with 2,500 members assigned to USCG Arctic (formerly the 17th Coast Guard District), has been busy bird-dogging Chinese government research vessels in the region.
We’ve already talked about the China-flagged research ship Xue Long 2 (Snow Dragon 2), which, at 14,300 tons, is China’s first domestically built polar research vessel, poking around the Extended Continental Shelf a couple of weeks ago.
Now, four other Chinese red hulls are poking around as well.
The five Chinese Research Vessels are: Xue Long 2, China-flagged; Shen Hai Yi Hao, China-flagged; Zhong Shan Da Xue Ji Di, Liberia-flagged; Ji Di, China-flagged; and Tan Suo San Hao, China-flagged.

The Zhong Shan Da Xue Ji Di, a Liberian-flagged research vessel, owned and operated by the Chinese University Sun Yat-Sen, as detected by a Coast Guard C-130 Hercules aircraft from Air Station Kodiak. (U.S. Coast Guard courtesy photo) 250805-G-G0200-1001

A C-130J Hercules airplane crew from Coast Guard Air Station Kodiak responds to a Chinese research vessel operating in the U.S. Arctic as part of Operation Frontier Sentinel Aug. 13, 2025.

A C-130J Hercules airplane crew from Coast Guard Air Station Kodiak responds to a Chinese research vessel operating in the U.S. Arctic as part of Operation Frontier Sentinel Aug. 13, 2025.

A C-130J Hercules airplane crew from Coast Guard Air Station Kodiak responds to a Chinese research vessel operating in the U.S. Arctic as part of Operation Frontier Sentinel Aug. 13, 2025.
From USCG PAO Juneau:
The U.S. Coast Guard detected and responded to two Chinese research vessels operating in the U.S. Arctic and is currently monitoring a total of five similar vessels in or near the U.S Arctic.
On August 5, a C-130J Hercules fixed-wing aircraft from Air Station Kodiak responded to the Chinese research vessels Ji Di and the Zhong Shan Da Xue Ji Di. Both vessels were transiting northeast in the Bering Sea.
On August 6, the crew of U.S. Coast Guard Cutter Waesche (WMSL 751) again responded to the Zhong Shan Da Xue Ji Di as it was transiting north in the Chukchi Sea above the Arctic Circle, after passing through the Bering Strait.
The C-130 and USCGC Waesche were patrolling under Operation Frontier Sentinel, an operation that responds to adversaries operating in and around Alaskan and U.S. Arctic waters. The U.S. Coast Guard’s responses are intended to counter malign activities, defend sovereign interests, and promote maritime conduct consistent with international law and norms.
The presence of these vessels is consistent with a three-year trend of increased activity from Chinese research vessels operating in the U.S. Arctic. Last year, three Chinese research vessels conducted research operations north of the Bering Strait.
Storis commissioned in Juneau
The new (to the service) “icebreaker” USCGC Storis (WAGB-21) was commissioned in Juneau on Sunday.

U.S. Coast Guard Cutter Storis (WAGB 21) remains moored during the Storis commissioning ceremony at Juneau, Alaska, August 10, 2025. Storis is the first polar icebreaker acquired in more than 25 years by the Coast Guard, with its mission to assure access to the polar regions and protect U.S. sovereignty. (U.S. Coast Guard photo by Petty Officer 3rd Class Carmen Caver)
Taking the name of the legendary 2,000-ton/230-foot WWII-era icebreaker USCGC Storis (WAGL/WAG/WAGB/WMEC-38), which had a 64-year career, much of it in Alaska waters, the new 12,800-ton 360-foot cutter is much different but at the same time, more capable in many ways.

Sadly, although she was commissioned in Alaska and is to be stationed there, Storis will be shifting back to Seattle, where she is chilling with the USCG’s other icebreakers until a berth can be finished for her in 2026-27.
Meanwhile, the Coast Guard’s $4.3 billion Polar Security Cutter (PSC) heavy polar icebreaker program has had all three of its vessels fully funded— although it will probably be half a decade before the class leader is delivered and commissioned.

Going past that class, three to five new medium polar icebreakers called Arctic Security Cutters (ASCs) are on the drawing board, giving the service eight modern icebreakers to replace its current three (the 50-year-old heavy USCGC Polar Star, the 26-year-old medium breaker USCGC Healy, and the ersatz Storis).
$3.5 billion for the first three Arctic Security Cutters has been fully funded under H.R. 1.

The Coast Guard’s future Arctic Security Cutter (ASC), as many as five of which may be built “someday”
New Sentinel clocks in
The fifth of six planned new 154-foot Sentinel (Webber) class Fast Response Cutters is slated to be commissioned at Kodiak’s fuel pier on Monday after self-deploying over 7,000nm from her builder in Louisiana.

The crew of U.S. Coast Guard Cutter Earl Cunningham (WPC 1159) arrives at their homeport in Kodiak, Alaska, May 31, 2025. This was the first time the cutter had arrived at its homeport following its construction in Lockport, Louisiana. (U.S. Coast Guard photo by Petty Officer 1st Class Shannon Kearney)
Cunningham will be homeported in Kodiak with USCGC John Witherspoon (WPC 1158), which arrived in January. Meanwhile, they have a trio of Ketchikan-based sisters: USCGC John McCormick (WPC-1121)— the first Sentinel-class stationed in Alaska in 2017– USCGC Anthony Petit, and USCGC Bailey Barco. They all replaced smaller, cramped 110-foot Island-class cutters, which dated back to the Reagan Administration.

The Coast Guard commissioned its newest cutter, Coast Guard Cutter Earl Cunningham (WPC 1159), for official entry into its service fleet during a ceremony held in Kodiak, Alaska, Aug. 11, 2025. The ceremony was presided over by Adm. Kevin Lunday, acting commandant of the Coast Guard, and members of the Cunningham family were also in attendance, including the cutter’s sponsor, Penney Helmer, who is also the granddaughter of Earl Cunningham. (U.S. Coast Guard photo by PA3 Carmen Caver)
Armament includes a Mk 38 Mod 2 25mm gun forward and four flex mounts for M2 .50 caliber BMGs (or anything else that can be put on those pintles) along with assorted small arms. These vessels have been operating small UAVs as of late.
The sixth FRC headed to Alaska, the future
USCGC Frederick Mann (WPC 1160), was
delivered by Bollinger last month and should arrive in Alaskan waters in the coming weeks.
With 67 FRCs contracted by the USCG, and six now serving in the Persian Gulf, the service is
negotiating with Bollinger for another 10-to-12 of these hardy vessels.
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