It’s most likely historians will mark the War on Terror, declared by George W. Bush in 2001, as when the U.S. went into precipitous decline. The rapid military expansion into multiple countries was classic imperial overreach. The era of the U.S. as the sole superpower is drawing to a close. China is challenging U.S. global hegemony. And it is doing so primarily on the economic front. It lets Washington spend trillions on wars and the pricey weapons to fight them. China, in the meantime, is constructing long term economic partnerships and alliances with countries all over the world. It is also building up its military but will not risk a war with the U.S. China had a bad couple of centuries, but it’s back, big time. The trends all point to 2030 when China passes the U.S.