Qatar has maintained cordial relations with Iran. In 1991, following the end of the Persian Gulf War, former emir of Qatar Hamad bin Khalifa welcomed Iranian participation in Persian Gulf security arrangements, however due to resistance from other Persian Gulf Arab States, these never came into fruition. However, Qatar maintains security cooperation with Iran through bilateral ties. Additionally, plans were being formulated in 1992 to pipe water from the Karun River in Iran to Qatar, but after local resistance in Iran this was laid to rest.