Ukraine's parliament will hold a vote on May 8 to ratify a minerals deal signed with the United States earlier this week, a lawmaker said on Friday, while the prime minister suggested the agreement will help Kyiv with supplies of air defence systems. Ukraine and the U.S. signed a deal on Wednesday that will give the United States preferential access to new investments in extraction of Ukraine's natural resources, and fund investment in Ukraine's reconstruction. According to the deal, new military aid, if provided by Washington to Kyiv, could be scored as the U.S. contribution to the joint fund being...