Complex sentence: Ukrainian forces destroyed eleven Grad rocket systems, three tanks, and five armoured vehicles used by the insurgents in Snizhne on 21 August.Ukrainian government sources said that they also killed more than 100 Russian "mercenaries".
Split into simpler sentences: Ukrainian forces destroyed eleven Grad rocket systems, three tanks, and five armoured vehicles used by the insurgents in Snizhne on 21 August. Government sources said that they also killed more than 100 Russian "mercenaries".