A prime example that Waltz refers to is Lenin's theory of imperialism, which posits that the main cause of war is rooted in the need for capitalist states to continue opening up new markets in order to perpetuate their economic system at home.
Waltz memberi contoh teori imperialisme Lenin yang menyatakan bahwa penyebab utama perang adalah keinginan negara-negara kapitalis untuk terus membuka pasar baru demi mempertahankan sistem ekonomi di dalam negerinya sendiri.