Additional capability in Arctic waters is provided by civilian icebreakers operated by the state-owned Rosatom company as well as other companies (Rosmorport, Gazprom Neft) and a Project 21180 vessel built for the Russian Navy. This icebreaker fleet, which includes four nuclear-powered vessels, has been described as "crucial to military access and operations". Additional nuclear-powered Project 22220 (up to five hulls) and Project 10510 (up to three hulls) icebreakers are under construction or planned to augment and replace those in service. The Navy, in turn, is procuring a new "lightened" class of Project 21180M icebreakers (which are two-thirds the displacement of the existing Project 21180 ship) with the first vessel planned for service entry in 2022. These plans were formalized under the terms of a presidential executive order and Arctic strategy unveiled in October 2020. The icebreakers are designed to ensure the capacity of year-round navigation along the Northern Sea Route.