The capital of Afghanistan is Kabul, a city of 5 letters. Osama is another 5 letter word associated with Afghanistan, referring to the former leader of the Taliban, Osama bin Laden. RISK is a 4 letter word that is often associated with Afghanistan due to its long history of conflict and instability. Herat is another 5 letter word associated with Afghanistan, referring to a major city in the western part of the country. IRAN is a 4 letter word that borders Afghanistan to the west, and BORA is a 4 letter word referring to a mountain range in the north of Afghanistan.