Reddit mentions of Okinawa: Cold War Island

Eamonn Fingleton (Irish) was a fantastic commentator on Japan (and the US, and Europe, and China... he predicted Trump's victory in 2016) but for the last 2 years he seems to have stopped writing much.

On Pearl Harbor Day, A Question: Is Today’s Japan Really A Sincere American Friend?

70 Years Later, Struggle for Nanking Massacre Justice Continues

Another great source, The Oriental Economist Report, a one-person show, is currently on sabbatical. His writing has been on Foreign Affairs.

Trump and Japan: Reality Check for Abe and the President

Democracy Now, a great source of news in general, has good coverage on Japan:

Democracy Now, Topic: Japan

If you want to go historical, the late Chalmers Johnson wrote several books on the political economy and foreign affairs of Japan.

Amazon author: Chalmers Johnson

MITI and the Japanese Miracle: The Growth of Industrial Policy, 1925-1975

Japan: Who Governs?: The Rise of the Developmental State

Okinawa: Cold War Island

I'm about to graduate with a degree in Japanese History so I can recommend a lot of books on different topics, but I need to know something more specific. For a broad summarization of Japanese history, I recommend Andrew Gordon's A Modern History of Japan.
Since you're interested in Okinawa (which has been a big part of my focus), I'd recommend Okinawa: Cold War Island ed. by Chalmers Johnson, this book is more rooted in poli-sci. I found Christopher Nelson's Dancing with the Dead an extremely fascinating anthropological account of war memory and trauma in Okinawa. The first chapter of Norma Field's In the Realm of a Dying Emperor focuses on Chibana Shōichi, an Okinawan who burned Hi no Maru at a national sporting event (the rest of the book is really interesting and well written as well). I can plenty of other books depending on what you're interested in. Just let me know :)