Syria¡¯s army is poised to slice rebel-held eastern Ghouta in two as forces advancing from the east link up with troops at its western edge, a pro-Damascus commander said on Thursday.

The government, backed in the war by Russia and Iran, is seeking to crush the last major rebel enclave near the capital in a ferocious campaign that the aid agency Medicins Sans Frontieres (MSF) says has killed more than 1,000 people.

Rebels, who accuse the government of ¡°scorched earth¡± tactics, said they were deploying more guerrilla-style ambushes in lost territory, trying to stop further advances.