
LA Times Book Award winner and expert on the past and present Japan, Ian Buruma examines the transformation of a country. Following Japan's history from its opening to the West in 1853 to its hosting of the 1964 Olympics, Buruma focuses on how figures such as Commodore Matthew Perry, Douglas MacArthur, and Emperor Mitsushito helped shape this complex country.
I strongly recommend Ian Buruma's "Inventing Japan"
Mostly from reading Buruma's Inventing Japan, and Dower's War Without Mercy and Embracing Defeat.
The fact that the pre-Perry regime was nasty has no bearing on the causal factors of Japan's later imperialism