HELSINKI, Jan 30 (Reuters) - Finland is sticking to its plan to join NATO at the same time as Nordic neighbour Sweden, and hopes to do so no later than July, Finnish foreign minister Pekka Haavisto said on Monday. "I still see the NATO summit in Vilnius in July as an important milestone when I hope that both counties will be accepted as NATO members at the latest," Haavisto said. "We appreciate those security assurances very much even if we understand that it is not the same as the NATO Article 5, but it is very important for us," he said