In general, most kidnaps are resolved relatively swiftly, with a minority of cases lasting over six months. In some countries, kidnaps are resolved quickly – in a matter of days or weeks. In others, hostages might be held for months or years. It can vary according to the identity of the kidnapping group, what they are looking to achieve, political factors on the ground, the identity of the hostage and what those negotiating their release are able to offer or do.