Well, most countries that need them have Coast Guard ice breakers, some navies have them, and then there are also commercial ones.I wonder if it will be going into the Arctic or Antarctic on her first mission.
The US navy transferred all of its ice breakers to the US Coast Guard in the 1950s. Currently, the US Coast Guard has three large Ice Break Cutters and 11 ice breaking cutters (2 x 225' WLB and 9 x 140' WTGB) on the Great Lakes.
China has, in addition to these new PLAN cutters, one large cutter in the Polar research Institute of China.
The Russians have always had a very large Ice Breaking fleet. Right now it consists of six nuclear powered and 20 diesel-electric icebreakers. Their Navy is building four new diesel electric ice breakers, and they are building two new huge nuclear powered ice breakers commercially.
The JMSDF has one ice breaker, but also its Coast Guard operates several.
The Canadian Navy is building 5 or 6 Arctic Patrol Boats that will be able to perform ice breaking, but also have several in their Coast Guard.
The Royal Navy has one ice breaker, but also two aucillary service ice breakers.
Of course in most of the sea faring countries there are also commercial ice breakers which can assist when necessary.