Russian President Vladimir Putin (L) and US President Barack Obama (R) .© Host Photo Agency Ukraine will need considerable help from Russia and the United States to have the country restored from the current crisis, former US Ambassador to Ukraine William Green Miller said. "It's going to take several years to recover from this period of turmoil, political unrest, revolution which is moving in the positive direction," Miller told RIA Novosti Wednesday. "But it will have to receive considerable help from the world institutions and from Russia as well as the United States, and Europe – all will have to work to restore Ukraine." Miller believes that the political reasons for the revolution are clear, and the remedies are being pursued. "So I think after few years Ukraine will be back on track," he concluded. As a result of the ongoing political crisis in the country, Ukraine is currently on the verge of a default. Kiev authorities are trying to re