Russian President Vladimir Putin Thursday warned the United States that supplying Ukraine with long-range missiles will “seriously damage relations” between Moscow and Washington and have no change in the situation on the battlefield, where the Russian army is making slow but steady advances. “It will certainly not change the balance of force on the battlefield,” he added, emphasising that the Russian military is continuously making gains against Ukraine. “We are fighting against the entire bloc of NATO and we keep moving, keep advancing and feel confident and we are a paper tiger; what NATO itself is?” he said. “A paper tiger? Go and deal with this paper tiger then.”The White House did not immediately respond to a request for comment on Putin’s remarks.