Complex sentence: On 6 August 2017, the government forces recaptured the town of Al Sukhnah and it advance will provide to them access to the besieged city of Deir ez-Zor.
Split into simpler sentences: On 6 August 2017, the government forces recaptured the town of Al Sukhnah. This leaves the road open to the besieged city of Deir ez-Zor.