Which one of these countries, despite having a direct link to Al-Qaeda, was not invaded by the US?

Question

Quizplus · Accepted Answer

Saudi Arabia, despite being the nationality of 15 of the 19 September 11 attackers and having indirect links to Al-Qaeda, was not invaded by the US. The US instead chose to invade Afghanistan and Iraq following the September 11 attacks, citing different reasons for each. Iran, while often in conflict with US interests, was also not invaded.

Which One of These Countries, Despite Having a Direct Link