The capital of Port Yemen is ADEN, which is a four-letter word. ADEN is a port city located in the southern part of Yemen on the Gulf of ADEN. It is the second largest city in Yemen and is an important commercial hub for the country. ADEN has a long history, having been occupied by various empires over the centuries, including the Ottoman Empire and the British Empire. Today, it is a major port for the region and is home to a large population.