: The 1990s saw the rapid expansion of liberal democracy, global trade, and the European Union.
: The September 11, 2001 attacks shifted global priorities toward counter-terrorism and led to conflicts in Afghanistan and Iraq. Storia delle relazioni internazionali. Dal 1918...
The transition from a brief unipolar world led by the United States to a complex, fragmented global landscape. : The 1990s saw the rapid expansion of