Paper PDF: https://csis-prod.s3.amazonaws.com/s3fs-public/180402_Strategic_Japan_Michito_Tsuruoka_paper%20%28final%29.pdf?pSmCsB3IImuyNihdw.JUiAz4vTI9of8d
All Strategic Japan Working Papers: https://www.csis.org/programs/japan-chair/strategic-japan-working-papers
The Podcast I recorded with Heather Conley, Senior Vice-President for Europe, Eurasia and the Arctic at CSIS, "Japan's Challenges in Eurasia," which also includes an interview with Yoko Hirose, a colleague of mine at Keio University who joined the same program a little earlier than me, can be found here.
Podcast URL: https://www.csis.org/podcasts/cogitasia/japans-challenges-eurasia
Soundcloud link: https://soundcloud.com/csis-57169780/japans-challenges-in-eurasia