What happens to mothballed ships in the campaign?

Can mothballed ships be bought by allied navies?

Yes. In the campaign, allies tend to buy mothballed ships, which helps move older hulls out of the active fleet.

Older ships tend to move toward more distant stations as they age. Mothballing creates another outlet because allied navies may purchase the reserved hulls. The player can retain ships for possible reuse, transfer them abroad, or continue paying for active service. This campaign mechanic connects reserve policy, allied capacity, and the useful life of older warships.