自由民権運動
However, Japanese society had been strongly inclined to ultranationalism from the Freedom and People's Rights Movement. The latter debates on aggressive expansionism to Asia became clearly apparent. Their representatives were the Black Ocean Society and the Black Dragon Society. The Black Dragon Society (1933) argued for Japanese imperialism and expansionism, and they led to a debate on securing the Asian continent under Japanese control. Exceptionally, Ryōhei Uchida (1874–1937), who was a member of the Black Dragon Society, was a Japan-Korea unionist and activist of Philippines and Chinese revolutions.