22:00The World TonightOffensive begins to drive IS militants out of Iraq's western province of Anbar.BBC Radio 4 Duration: 45 minutes Tue 26th May 2015, 22:00 on BBC Radio 4 FMAvailable for over a yearListen nowAim is to cut off IS fighters who'd recently occupied provincial capital, Ramadi.GenresNewsBrandThe World Tonight Source: BBC Online