Complex sentence: On 16 March 2000, the Parliament called for a resolution on the Five Eyes and their ECHELON surveillance network, which, if passed, would have called for the "complete dismantling of ECHELON".
Split into simpler sentences: On 16 March 2000, the Parliament called for a resolution on the Five Eyes and their ECHELON surveillance network. If passed, the resolution would have called for the "complete dismantling of ECHELON".