Hypersonic missiles are a new category of weapons which have sparked intense debate among security experts. Capable of travelling over five times the speed of sound (Mach 5), and of performing evasive maneuvers mid-flight, they are considered practically impossible to intercept using conventional missile defence systems. Adding that in some cases they can carry nuclear warheads, it is immediately clear why they have caused so much concern in regard to their impact on the global strategic equilibrium. The world’s leading military powers (the United States, China, and Russia) and other states are working on their development. Even though their specific technical characteristics and actual performance remain shrouded in secrecy, hypersonic weapons are poised to become an integral part of future warfare, with noteworthy implications in military and international terms.