The 1923 and 1926 Imperial Conferences decided that New Zealand should be allowed to negotiate its own political treaties and the first commercial treaty was ratified in 1928 with Japan.
1923 年和 1926 年的帝国会议决定新西兰应有权自行商讨本国政治条约。1928 年，新西兰与日本签订了第一个商业条约。