Canada has been involved in Afghanistan since 2001 with goals to improve security, deliver basic services, provide humanitarian aid, strengthen borders, and support national institutions and reconciliation efforts. Key projects Canada supports include building the Dahla Dam irrigation system to provide water and jobs, constructing and repairing schools to boost education, and assisting with polio vaccination efforts. By 2011, Canada aimed to enhance security and living conditions in Kandahar, as well as support Afghanistan's development.