"another chance" . "1942-12-20" . . "second Soviet Rzhev-Sychevka offensive" . . "Second Rzhev\u2013Sychyovka offensive operation" . . "Rzhev-Sychevka" . . . "70,373 irrecoverable" . . . . . "Operation Mars" . "100,000 killed" . . "Rzhev salient near Moscow" . "* Soviet operational failure" . . . "German victory" . "~ 350,000 troops." . . "3 combined corps" . . . . . "Operation Mars" . . . "Second Rzhev-Sychevka Offensive Operation" . "702,923 personnel," . "3 motorized divisions)" . "235,000 wounded" . . "Isayev:" . ":Operation Mars" . "Glantz:" . . "1,600 tanks" . . "2 panzer corps" . . . . "Total forces:" . . . "145,301 wounded or sick" . . . "1,615 tanks" . . . . . . "Rzhev offensive" . . "Germany" . "Second Rzhev-Sychyovka Offensive Operations" . . . "1,718 tanks" . "Mars" . . "(5 panzer divisions," . . "Soviet Union" . . . "(with 13 infantry divisions" . "and 2 paratrooper divisions)" .