Pretty much as per the title, I've recently become interested in the numerous conflicts between Russia and Japan, up to and including World War II. I tend to have trouble getting my way through books that are too dry, so I'd like to request good prose over the level of detail if I can't have both (of course, not at the sacrifice of accuracy).
Had to dig back into my university reading lists to find exact titles, but here's a couple I remember being useful reading on Japanese imperialism in the late 19th/early 20th century:
From the Russian angle, see:
As a general source on the 1905 war that's useful if a little aged now, have a look at:
Hope that's of some use.