> What is happening in north-western Syria and why now?
Rebel forces have launched their largest offensive against the Syrian government in years.
They have captured a swathe of land across the north-west of the country, including most of the second city of Aleppo, after the Syrian military rapidly withdrew its troops.
The rebels are now battling the military near the central city of Hama, while the government’s key ally Russia is carrying out air strikes against them.
https://www.bbc.co.uk/news/articles/c99x0l1d432o