In May 2009, Sri Lanka's decades long civil war with the Tamil Tigers, the Liberation Tigers of Tamil Eelam came to a bloody close after government forces launched a massive offensive.br br What exactly happened during the last days of the battle is still the subject of fierce debate, but it is clear that as the rebel perimeter shrank, around a third of a million civilians were trapped between the two armies and tens of thousands were killed.br br This episode of People & Power can be seen from Wednesday, April 20, at the following times GMT: Wednesday: 2230; Thursday: 0930; Friday: 0330; Saturday: 1630; Sunday: 2230; Monday: 0930.