Mayer argued in his "Politics and Diplomacy of Peacemaking" (1967), which won the American Historical Association's 1968 Herbert Baxter Adams Prize, that the Paris Peace Conference was a struggle between what he termed the "Old Diplomacy" of the alliance system, secret treaties and brutal power politics and the "New Diplomacy" as represented by Vladimir Lenin's Decree on Peace of 1917 and Woodrow Wilson's Fourteen Points, which Mayer considers as promoting peaceful and rational diplomacy. He described the world of 1919 as divided between the "forces of movement", representing liberal and left-wing forces, representing the "New Diplomacy" and the "forces of order", representing conservative and reactionary forces, representing the "Old Diplomacy". Mayer considers all foreign policy as basically a projection of domestic politics, and much of his writing on international relations is devoted towards explaining just what domestic lobby was exerting the most influence on foreign policy at that particular time. In Mayer's opinion, the "New Diplomacy", associated with Lenin and Wilson, was associated also with Russia and America, both societies that Mayer has argued either had destroyed or lacked the partial "modernized" societies that characterized the rest of Europe. He sees the United States' diplomacy at Versailles as an attempt to establish a "new", but "counter-revolutionary" style of diplomacy against "revolutionary" Soviet diplomacy.