US President Barack Obama said Saturday that the US goal in Afghanistan was "within reach" as he vowed to move ahead with a timetable to end the 11-year-old military campaign and focus on a broad domestic agenda. "We've pushed the Taliban out of their strongholds," Obama said in his weekly radio and Internet address. "And our core objective -- the reason we went to war in the first place -- is now within reach: ensuring that Al-Qaeda can never again use Afghanistan to launch attacks against America."