The Christian army consisted of heterogeneous masses, which represented the various and conflicting aspirations of their countries and nascent spirit of nationality therein. The sense of unity and universality that had been the foundation of Empire and Papacy in the early Middle Ages was passing away, and in its place the separatism of independent kingdoms was arising. This new separatist tendency demonstrated itself amidst the crusading medley before Nicopolis. There was no unity of purpose, no unity of arms and companies, and no common tactics in the camp of the Christians. The Turkish army was, on the other hand, a perfect example of the most stringent discipline, of a rigorous and even fanatic unity of purpose, of the concentration of supreme tactical power in the sole person of the Sultan. For an increasingly isolated Constantinople, such developments boded ill.
The former sounds much like what the US is being reduced to in its post-Christian liberal declension vs China.