Aden, one of the area's hardest hit areas. we must warn you, though, some of the images you're about to see are graphic. here is nima's report. >> reporter: these are the shores of aden, aden has seen some of the fiercest fighting since the battle began. we're going into the side port here and that's where the ship is turning into. even here the fighting between houthi rebel, and yemeni government supporters is never very far away. our boat can't dock directly to port so we climb into smaller boats for the journey to shore. aden is yemen's second largest city. three weeks into the fighting her...