Aid can be subdivided into two categories: humanitarian aid (emergency relief efforts, e.g. in response to natural disasters), and development aid (or foreign aid), aimed at helping countries to achieve long-term sustainable economic growth, with the aim of achieving poverty reduction. Some aid agencies carry out both kinds of aid (e.g. EcoCARE Pacific Trust and ADRA), whilst others specialise (e.g. Red Cross, humanitarian aid; War on Want, development aid).