This type of Multipolarity is characterized by the dominance of a single superpower after the fall of the Soviet Union in 1991. It is also known as "Unipolarity". In this type of system, the US is the only major power or state, and it aligns and defines the world order according to its interests. This type of system is characterized by the absence of significant counterweights to the US hegemony. Also, other states may seek to balance this power with counter-coalitions, and some would also seek to bandwagon US power.