The drive of the Bush administration for US empire building is questioned by some major capitalists. Immanuel Wallerstein argues that "Seen in longer historical perspective, what we are seeing here is the 500-year-old tension in the modern world-system between those who wish to protect the interests of the capitalist strata by ensuring a well-functioning world-economy, with a hegemonic but non-imperial power to guarantee its political underpinnings, and those who wish to transform the world-system into a world-empire."