No fighting force has the reach and might of the US military machine, and yet America’s rivals for global power are challenging and surpassing it in war technology. Michael Evans reports… A new arms race has officially begun, with space becoming the latest frontier for weaponry. The launch today by President Trump of the Pentagon’s vision for a space-based ballistic missile defence system is America’s answer to the growing threat posed by a new generation of exotic weapons developed by Russia and China. – The Times Photo: Underwater drone operators with the US 5th fleet prepare a vehicle for a survey. / US Navy