KYIV, Ukraine (AP) — Russian President Vladimir Putin is doubling down on his faltering invasion by declaring martial law in four illegally annexed Ukrainian regions. In addition, he set the stage Wednesday for draconian new restrictions and crackdowns throughout Russia. The drastic escalation appeared to be prompted by the threat of more stinging battlefield defeats, sabotage and troubles with his troop mobilization. Putin’s order effectively belies the Kremlin’s attempts to portray life in the annexed regions as returning to normal, with the latest example the removal of civilian leaders and installation of a military administration and a mass evacuation in Kherson. Local officials said Wednesday that 5,000 had been evacuated already, with plans to pull out a total of up to 60,000.