Vladimir Putin said on Wednesday he was introducing martial law in four Russian-occupied regions of Ukraine that Moscow claimed last month as its own territory but is struggling to defend from Ukrainian advances.In televised remarks to members of his Security Council, Putin boosted the powers of Russia’s regional governors and ordered the creation of a special coordinating council under Prime Minister Mikhail Mishustin to step up the faltering war effort.He said the “entire system of state administration,” not only the specialized security agencies, must be geared to supporting what Russia calls its “special military operation.”The package of moves, nearly eight months into the war, marked the latest escalation by Putin to counter a series of major defeats at the hands of Ukrainian forces since the start of September.