A loose alternate history fleshed out via a combination of writing, research, and experimenting with SpringSharp. I've gone to substantial efforts to keep things at least broadly within realistic constraints.
From an "out of character" perspective, the alternate history centers on two "primary" warship classes: the Portland-class armored cruiser and the Minneapolis-class light cruiser. These are the final classes of cruisers built under the restrictions of the alternate history's version of the Washington Naval Treaty and are the "parent" designs for the post-treaty cruisers which follow into World War II.