CANBERRA (Reuters) - Australia moved to set up the worlds biggest marine park on Friday to protect vast areas of the Coral Sea off the countrys northeast coast and the site of fierce naval battles during World War Two. Environment Minister Tony Burke said the park would cover almost 1 million square km an area the size of France and Germany combined and would help protect fish, pristine coral reefs and nesting sites for sea birds and the green turtle. The environmental significance of the Coral Sea lies in its diverse array of coral reefs, sandy cays, deep sea plains and canyons, Burke said. It contains more than 20 outstanding examples of isolated tropical reefs, sandy cays and islands.