On 6 August 2005, Iran rejected a 34-page European Union proposal intended to help Iran build "a safe, economically viable and proliferation-proof civil nuclear power generation and research program." The Europeans, with US agreement, intended to entice Iran into a binding commitment not to develop uranium enrichment capability by offering to provide fuel and other long-term support that would facilitate electricity generation with nuclear energy. Iranian Foreign Ministry spokesman Hamid Reza Asefi rejected the proposal saying, "We had already announced that any plan has to recognize Iran's right to enrich uranium". After the Iranian Revolution, Germany halted construction of the Bushehr reactor, the United States cut off supply of highly enriched uranium (HEU) fuel for the Tehran Research Reactor, and Iran never received uranium from France which it asserted it was entitled to. Russia agreed not to provide an enrichment plant and terminated cooperation on several other nuclear-related technologies, including laser isotope separation; China terminated several nuclear projects (in return, in part for entry into force of a U.S.-China civil nuclear cooperation agreement); and Ukraine agreed not to provide the turbine for Bushehr. Iran argues that these experiences contribute to a perception that foreign nuclear supplies are potentially subject to being interrupted.