Absolutely right and there didn’t changed much in the last 100 years. Here a quote from a old book: ‘It is true that there exists a vast body of what is termed “international law”; but this bloodless caricature lacks the first essential foundation of law in capitalist society, the existence of a sovereign power capable of enforcing it…’[1].

1. World Politics 1918-1936 R. Palme Dutt