Washington had made clear it planned to start research, development and design work on new missile systems and Moscow would do the same, Putin said.

The Russian military should start work on creating land-based launch systems for an existing ship-launched cruise missile, the Kalibr, and for longer-range hypersonic missiles which travel at least five times the speed of sound, he said.

Defence Minister Sergei Shoigu on Tuesday ordered work to begin on developing the new systems.