"Ukraine and Russia have developed as a single economic system over decades and centuries. The profound cooperation we had 30 years ago is an example for the European Union to look up to. We are natural complementary economic partners. Such a close relationship can strengthen competitive advantages, increasing the potential of both countries. Ukraine used to possess great potential, which included powerful infrastructure, gas transportation system, advanced shipbuilding, aviation, rocket and instrument engineering industries, as well as world-class scientific, design and engineering schools. Taking over this legacy and declaring independence, Ukrainian leaders promised that the Ukrainian economy would be one of the leading ones and the standard of living would be among the best in Europe. Today, high-tech industrial giants that were once the pride of Ukraine and the entire Union, are sinking."