Moscow: Russia has fired an Inter-Continental Ballistic Missile or ICBM at Ukraine a day after Vladimir Putin changed Moscow’s nuclear doctrine. The firing of the ICBM with a conventional (non-nuclear) warhead is a stern warning to Ukraine and its Western allies that Moscow’s red lines must be respected. Inter-Continental Ballistic Missiles, popularly referred as ICBMs are traditionally designed to carry a nuclear warhead, however it may also be used for conventional warheads. The concept, technology, design, and research behind ICBMs were to cater to a country’s response in a nuclear event. Moscow’s strong response comes days after US President Joe Biden and UK Prime Minister Keir Starmer allowed Ukraine to use western long-range cruise and ballistic missiles to target deep within Russian territory. Within hours of those approvals from Washington and London, Kyiv fired a US-made ATACMS missile and a UK-made ‘Storm Shadow’ missile targeting Russian territories. This is the first time Moscow has fired an ICBM, said Kyiv, as both sides saw major escalations in the war that marked its 1,000th day on Wednesday. …