International donors have said they will provide nearly $2bn (£1.1bn) in aid to help transform Afghanistan. The US has promised $1.1bn while the UK says it will give $800m, as part of a five-year development plan being discussed at a conference in London. Afghan President Hamid Karzai said his country had made great strides towards peace and democracy, but warned drugs and terrorism remained grave threats. Officials from about 70 nations are attending the two-day gathering. The plan, known as the \"Afghan Compact\", aims to promote stability and development in Afghanistan in return for economic and military support from the international community. The BBC\'s Nick Childs in London says one major theme at the conference has been that the world as a whole still has a major direct stake in Afghanistan\'s future. With more than four years passed since the US-led overthrow of former Taleban regime, he says a key question is whether the outside world will back up its pledges of support with real commitments. (BBC)