Government--lately mooted in the United States, in England, and in France, to submit international disputes, without reservation, to an impartial tribunal represent an advance of peculiar significance. The abolition of collective fighting is so desirable an extension of the abolition of individual fighting, and its introduction has waited so long the establishment of some high compelling power--for the influence of the Religion of Peace has in this matter been less than nil--that it is evident that only the coincidence of very powerful and peculiar factors could have brought the question into the region of practical politics in our own time. There are several such factors, most of which have been developing during a long period, but none have been clearly recognized until recent years. It may be worth while to indicate the great forces now warring against war. (1) _Growth of International Opinion._ There can be no doubt whatever that during recent years, and especially in the more democratic countries, an international consensus of public opinion has gradually grown up, making itself the voice, like a Greek chorus, of an abstract justice. It is quite true that of this justice, as of justice generally, it may be said that it has wide limits. Renan declared once, in a famous allocution, that "what is called indulgence is, most often, only justice," and, at the other extreme, Remy de Gourmont has said that "injustice is sometimes a part of justice;" in other words, there are varying circumstances in which justice may properly be tempered either with mercy or with severity. In any case, and however it may be qualified; a popular international voice generously pronouncing itself in favour of justice, and resonantly condemning any Government which clashes against justice, is now a factor of the international situation. It is, moreover, tending to become a factor having a certain influence on affairs. This was the case during the South African War, when England, by offending this international sense of justice, fell into a discredit which had many actual unpleasant results and narrowly escaped, there is some reason to believe, proving still more serious. The same voice was heard with dramatically sudden and startling effect when Ferrer was shot at Barcelona. Ferrer was a person absolutely unknown to the man in the street; he was indeed little more than a name even to those who knew Spain; few could be sure, except by a kind of intuition, that he was the innocent victim of a judicial murder, for it is only now that the fact is being slowly placed beyond dispute. Yet immediately after Ferrer was shot within the walls of Monjuich a great shout of indignation was raised, with almost magical suddenness and harmony, throughout the civilized world, from Italy to Belgium, from England to Argentina. Moreover, this voice was so decisive and so loud that it acted like those legendary trumpet-blasts which shattered the walls of