US President Donald Trump on Thursday vowed that America would develop a unrivaled and unmatched missile defence system and invest in a space-based missile defense layer to protect itself from emerging threats, including sophisticated "hypersonic" weapons.
Trump's remarks came as he unveiled the first overhaul of American missile defense doctrine in nearly a decade at the Pentagon.
Known as the missile defense review, the unclassified report, which was expected last year, is believed to have been delayed because of sensitivities about how to frame threats posed by China, Russia, North Korea and Iran, according to several defense officials.
The 108-page report emphasizes the need for a "comprehensive approach to missile defense against rogue state and regional missile threats," and calls for the development of new technologies to its system in the future.
"Our goal is simple. To ensure that we can detect and destroy any missile launched against the United States anywhere, anytime, ...
