Civil defense in Israel deals with a variety of military and terrorist threats to the civilian population, which have included concealed bombs such as suicide bombings and car bombs, projectiles such as missiles, rockets and mortars, and hijacking of aircraft, buses and buildings. Threats have originated in all countries and territories bordering Israel (the West Bank, the Gaza Strip, Lebanon, Syria, Jordan and Egypt), as well as Iraq, and an Israeli civil airliner was attacked with missiles in Kenya. Perceived threats that have not materialized to date include sustained interruption of the economy, nuclear attack from Iran, and chemical or biological attack from Iraq or elsewhere.