Sana'a, also spelled Sanaa or Sana, is the largest city in Yemen and the centre of Sana'a Governorate. The city is not part of the Governorate, but forms the separate administrative district of "Amanat Al-Asemah".
Yemen, officially known as the Republic of Yemen, is an Arab sovereign state in Western Asia at the southern end of the Arabian Peninsula. Yemen is the second-largest country in the peninsula, occupying 527,970 square kilometres. Wikipedia