Islamic State group fighters on Thursday killed 20 Syrian soldiers and affiliated pro-regime forces in two attacks on Damascus-controlled areas of the war-torn country, a war monitor said. A total of “16 regime forces and pro-government gunmen were killed in an IS attack on a military bus in the eastern countryside of Homs province”, said the Syrian Observatory for Human Rights. The dead included at least nine members of Liwa Al-Quds, a group comprising Palestinians fighters that has received support from Damascus ally Moscow in recent years, according to the monitor. “Four regime forces were …