Chief of Defence Staff General Bipin Rawat on Thursday pitched for strong global action against states sponsoring terrorism, saying there is a need to take the bull by its horns and strike at the root cause.In an address at the Raisina Dialogue, General Rawat also said there is a need to take a hardline approach in dealing with terrorism, the way the US went after terror groups after the 9/11 terror attacks.”As long as there are states which sponsor terrorism, we will have to live with the menace. We need to take the bull by its horns and strike at the root cause,” he said in an oblique reference to Pakistan.