It's actually in the US national interest to maintain the capability - both in terms of tooling/production lines as well as know how - to produce our currently

It's actually in the US national interest to maintain the capability - both in terms of tooling/production lines as well as know how - to produce our currently used main battle tanks. In addition, performing upgrades on older tanks, which is a large part of what the Ohio plant does, makes it possible to continue using existing tanks.