The Mau Movement in Samoa began a campaign of non-violent non-cooperation in response to New Zealand deporting its leaders, including boycotting European stores. They also withdrew from government schools and cancelled women's meetings. New Zealand responded with police crackdowns, arresting over 400 Mau members. Despite some releases, opposition continued in both Samoa and New Zealand. Nelson traveled to the League of Nations seeking self-rule while the New Zealand Samoan Defence League advocated in Auckland. The Mau Movement faced heavy pressure from New Zealand's administration.