Question

After the September 11 attacks on the World Trade Center, NATO invoked Article 5 of its treaty which stated

a. that terrorists could be extradited from any country.
b. international terrorism required the death penalty.
c. that response attacks must also include humanitarian aid.
d. that allied nations must support a nation under attack.

Answer 1

After the September 11 attacks on the World Trade Center, NATO invoked Article 5 of its treaty which stated "d. that allied nations must support a nation under attack," since this was one of the primary purposes of NATO when it was created during the Cold War.