Chernobyl murdered during the Nazi occupation of 1941–44. Twenty years later, the area was chosen as the site of the first nuclear power station to be built on Ukrainian soil. The Duga over-the-horizon radar array, several miles outside of Chernobyl, was the origin of the Russian Woodpecker; it was designed as part of an anti-ballistic missile early warning radar network. With the dissolution of the Soviet Union in 1991, Chernobyl remained part of Ukraine. On 26 April 1986, Reactor No. 4 at the Chernobyl Nuclear Power Plant exploded after tests were done on the reactor improperly and the operators lost control.
Nuclear power in the European Union nuclear hazard. This system was installed after the experience with the Chernobyl disaster. The Commission's SET plan mentions the "sustainable nuclear fission initiative" to develop Generation IV reactors as one of the research priorities of the European Union. The European Commission is proposing a stress test for all nuclear power plants in Europe, to prove the nuclear fleet can withstand incidents like those in Fukushima. The European Commission is also proposing tests for countries near the EU that make use of nuclear power. On average, the EU creates about 40,000 cubic meters of radioactive waste per year. Eighty percent of