In 1919 Harrison edited the monthly "New Negro" magazine, which was "intended as an organ of the international consciousness of the darker races--especially of the Negro race". Harrison's concentration on international matters continued. Over the next several years, he wrote many powerful pieces critical of imperialism and supportive of internationalism. His writings and talks over his last decade revealed a deep understanding of developments in India, China, Africa, Asia, the Islamic world, and the Caribbean. Harrison repeatedly began his analysis of contemporary situations from an international perspective. Though a strong advocate of armed self-defense for African Americans, he also praised the mass-based non-violent efforts of Mohandas K. Gandhi.