>>3012Monopolies became entrenched around the late 1800s before the formation of our modern credit system. A credit system which Lenin nor Marx could not commentate on as the the gold standard had not been dropped in place of the US dollar yet. Libya's threat to the US dollar would lower the demand for the US dollar and weaken its purchasing power. The US has a trade deficit, thus its dollars flood foreign markets, particularly those which it extracts value from. Its military opens up new markets and creates more capital in the process of capital accumulation.
Michael Hudson explains this much better than I can, and he is foremost the leading economist in formulation of American imperialism and the debt economy.