It is incapable of having a consistent peace policy, even when it attempts to do so. Liberals, on the other hand, divorce the politics of the capitalist government from its economic anatomy and class structure. They most often take the view that military intervention by a capitalist state is the result of a mistaken policy. They do not see or do not wish to see that the political policy flows from the economic needs and structure of capitalism. More often than not, they blame the particular administration or governing group at the time for the war, not taking cognizance of what Marxists have always known, that any particular administration of the capitalist state is merely the executive committee of that state and functions on behalf of the capitalist class.
Liberalism separates politics from economics.
Instead of taking a class view of any particular struggle, either foreign or domestic, they substitute bourgeois morality for class politics. This prevents them and all who follow them from taking a thoroughly progressive and revolutionary view of the evolving capitalist system, which has moved in the last century from a relatively competitive stage of development into a monopolist, decadent one. Resorting to repression and violence abroad has become a characteristic and inseparable feature of the system. Buckley's solution is a diplomatic one. If you ask France, Britain and the U.S., all the interventions have come about because of the failure of diplomacy on the side of the oppressed, not the oppressors.