Those of us who now favor a league or federation of states as a means of preserving peace perpetually may well study the crisis to which a similar system had come in the development of international relations in 1820. The tsar’s ideal was a thing of glory thrown before a sordid world. Not even he, as we see, was proof against the debasement of his surroundings. If his plan had been adopted by all the nations, it is likely that the time would have come when the confederation thus formed would have become an agency for reaction against which liberal views would have been unable to contend.
On the other hand, we must not ignore the weight that a confederation would have had as an idea in promoting respect for liberal government. If it had been established under the protection of the tsar, it may well have been that Metternich would not have taken up the crusade of legitimacy, that the tsar and Castlereagh acting together in behalf of liberal institutions would have insured a steadier attitude on the part of the former, and that under such circumstances the kings of Spain and Naples would have been less inclined to the severe measures which provoked revolution. Of course, these are mere conjectures, but it is only fair to mention them as things to be said for the other side of the question.
When we come to apply the lessons of 1815-1820 to the present day, we must not forget that conditions are now very greatly changed. It was the supremacy of arbitrary government in Europe that made the hopes of 1815 come to naught. Of all the agents who then controlled affairs in the great states of Europe, Castlereagh, next to the tsar, was the most liberal. If a plan of union were adopted after the present war, it might not be a success, but the failure would not be for the same reasons as those that brought the Alliance of 1815 to a nullity.
Castlereagh made a protest against the purposes of the three Powers at Troppau in which were some telling arguments against such a league as was threatening. They were well made and would be applicable to the situation today, if it were proposed to establish a league like that which found favor at Troppau. The plan proposed, said he, was too general in its scope. It gave the projected confederation the right to interfere in the internal affairs of independent states on the ground that the general good was concerned, and if carried out the Alliance would, in effect, be charged with the function of policing such states. Against all this he protested, and he pointed out that so many grounds of dissatisfaction lay in the scheme that to try to enforce it would surely lead to counter alliances, the end of which would be war. It ought to be said, also, that Castlereagh was opposed to giving up war as a means of settling disputes. “The extreme right of interference,” he said, “between nation and nation can never be made a matter of written stipulation or be assumed as the attribute of an alliance.” If a man takes that position he can hardly be expected to see good points in any scheme to preserve peace perpetually.
