The Navy released a new fleet plan that calls for 355 ships, outlining a massive increase in the size of its high-end large surface combatant and attack submarine fleets but a modest increase in its planned amphibious ship fleet, according to a Dec. 14 summary of the assessment.

The findings of the latest Force Structure Assessment adds 47 ships to the Navy's battle force over the 308-ship figure from a 2014 FSA.

According to the summary, the service determined the 355 total was the "minimum force structure to comply with [Pentagon] strategic guidance" and was not "the "desired" force size the Navy would pursue if resources were not a constraint, read the summary.

"Rather, this is the level that balances an acceptable level of warfighting risk to our equipment and personnel against available resources and achieves a force size that can reasonably achieve success," according to the summary, which notes it would take a 653-ship force to meet all global requirements with minimal risk.

The largest change to the 2014 totals are in the high-end ships classes of attack submarines, large surface combatants – like guided-missile cruisers and destroyers – and aircraft carriers. The new total adds 16 large surface combatants, 18 attack submarines and an additional carrier over the 2014 plan.