The district judge in delivering the opinion declared that there was nothing in the principles of international law or in the terms of the Treaty of Washington, to which an appeal had been made, to prevent the citizens of a neutral state from selling supplies of war to a belligerent. The court went on to discuss the right of private citizens to sell supplies to belligerents, but did not enter upon the question whether or not the United States had permitted the British Government to make use of its ports and waters as a base for the purpose of the augmentation of its military supplies. The entire discussion of questions of international law was considered by the court as beyond its cognizance. The court said: "If the complainants could be heard to assert here rights personal to themselves in the treaty just mentioned, and if the mules and horses involved in the case are munitions of war, all of which is disputed by the defendants, it would become necessary to determine, whether the treaty is meant to prevent private citizens from selling supplies to the belligerents." The court then proceeded: "But the nature of this cause is such that none of the considerations hereinbefore set out need be decided," because "the case is a political one of which a court of equity can take no cognizance, and which in the very nature of governmental things must belong to the executive branch of the Government."[55] [Footnote 55: Pearson _v_ Parson 108 Fed. Rep. 461] It will be seen that the court did not pass upon the question of an improper use of the ports of the United States. Clearly an injunction could not be granted since such a measure would not have had the effect of remedying the evil. It could not issue, for it was not established that there were private property rights to be protected. The complainants could show no property in the implications of the treaty, nor could they establish the fact alleged, namely, that horses and mules are munitions of war. The last question was one for the Federal Government alone to pass upon under the circumstances. Political obligations are not proper matters for enforcement by the courts. But the court did declare emphatically that the enforcement of all neutral obligations with reference to the ports and waters of the United States was the function of the executive branch of the Government.