The struggle escalated dramatically when police were sent in to remove the barricades. Since Sunagawa was very close to
Tokyo, Zengakuren began busing in large numbers of students from Tokyo-area universities to bolster the manpower of the farmers. The protests began to take on larger, nationwide implications, rhetorically portrayed as a decisive battle to protect Japan's "
Peace Constitution" and resist American imperialism. Soon the struggle became a media spectacle. Realizing they were in front of television cameras and being covered by daily news, the students of Zengakuren pioneered a new type of protest tactic. Unlike earlier student protesters, who had often armed themselves in clashes with police, the Sunagawa protesters made a point of
sitting in unarmed. Wearing white shirts and white headbands to make the blood more visible, they deliberately allowed the police to beat them without resisting. The one-sided violence at Sunagawa proved successful in attracting sympathy to the protesters, leading to more favorable media coverage and further growth of the movement, and earning the struggle the sobriquet . ==Climax and resolution==