// BBC WORLD NEWS — MONDO
Inside Yemen's front-line city as Houthis battle for control
Watch: Correspondent takes cover as approaching drone interrupts report
"This is the first drone," said the soldier accompanying us in south-western Yemen. "It's usually followed by an attack."
The buzzing sound overhead got louder as we took cover under the bushes, before climbing back into the vehicle and driving away.
Within about 10 minutes, the loud thuds of strikes followed, one after another, though it was unclear where they landed.
It is hard to tell where the front line begins in the mountains south-west of the city of Taiz.
Saudi-backed pro-government forces are battling to push back Houthi fighters, who swept down the coast of the Red Sea earlier this month, taking control of a key shipping chokepoint and escalating Yemen's civil war.
We travelled with government forces from Taiz through checkpoints to the line where their control ends and no man's land begins, in order to see the fighting up close.
Homes are scattered across the slopes, but many stand abandoned after families fled to escape the fighting.
It is eerily quiet, no sound of the cars or motorbikes that are continuously whizzing through the city. All you can hear is the bleating of livestock and the sound of incoming and outgoing fire.
"Two mortars landed here on my property," said Ali, sitting outside his home with a herd of goats, about 1km (0.6 miles) from the front line.