Imperialism is constant for capitalism. But it passes through various phases as the system evolves. At present the world is experiencing a new age of imperialism marked by a U.S. grand strategy of global domination. One indication of how things have changed is that the U.S. military is now truly global in its operations with permanent bases on every continent, including Africa, where a new scramble for control is taking place focused on oil
This article can also be found at the Monthly Review website, where most recent articles are published in full.