 Fisher and his party were immediately underway in organising urgent defence measures for planning and implementing Australian war effort.Fisher visited New Zealand during this time which saw Billy Hughes serve as acting Prime Minister for two months.Fisher and Labor continued to implement promised peacetime legislation, including the "River Murray Waters Act 1915", the "Freight Arrangements Act 1915", the "Sugar Purchase Act 1915", the "Estate Duty Assessment" and the "Estate Duty" acts in 1914.