But the proposals differ widely, both as regards the scope they assign to the work of preventing war, and as regards the measures they advocate for securing the fulfilment of international agreement. They may be grouped, I think, in three classes on an ascending scale of rigour. The first class envisages a general treaty, by which the signatory states shall undertake to submit all differences between them to processes of arbitration or conciliation conducted by impartial courts or commissions, and to abstain from all acts of hostility during the progress of such investigation. This principle has recently found an important expression in the treaties signed last year by the United States with Great Britain and France, and other nations. The first article of these treaties reads as follows: 'The High Contracting Parties agree that all disputes between them, of every nature whatsoever, other than disputes the settlement of which is provided for, and in fact achieved, under existing agreements between the High Contracting Parties, shall, when diplomatic methods of adjustment have failed, be referred for investigation and report to a Permanent International Commission to be constituted in the manner prescribed in the next succeeding article; and they agree not to declare war or begin hostilities during such investigation and before the report is submitted.' The objects of this method of pacific settlement are three: first, to provide impartial and responsible bodies for a reasonable inquiry into all disputes; secondly, to secure a 'cooling off' time for the heated feelings of the contestants; thirdly, to inform the public opinion of the world and to make effective its moral pressure for a sound pacific settlement. The efficacy of any such arrangement evidently depends upon two conditions, first, the confidence of the signatory states that each and all will abide by their undertaking, and, secondly, the uncovenanted condition that they will accept and carry into effect the awards or recommendations of the arbitral and conciliation commissions. These proposals, however, furnish no sanctions or guarantees other than those of conscience and public opinion for the due performance of the treaty obligations, and make no attempt to bind the parties to an acceptance of the decision of the commissions. Moreover, regarded as a means of securing world-peace and disarmament, all such proposals appear defective in that they make no provision for disputes between one or more of the signatory states and outside states which are no parties to the arrangement.