FSA rebels defiant as Syria boosts offensive to retake Deraa

US tells Syrian opposition fighters not to expect backing in the Deraa, the cradle of country’s uprising and one of last two areas still held by rebels.

Syrian government helicopters have dropped barrel bombs on Deraa city, extending an assault in southwest Syria that has driven thousands from their homes. Along with the barrels crammed with explosives, the helicopters have dropped leaflets urging people to leave before the upcoming government offensive. It is one of the last two areas still held by rebels, who have promised to keep fighting.

Al Jazeera’s Mohammed Jamjoom reports.