Over the Wire--

LONDON--Sweeping on through town and village, in the face of blinding snow storms, Russian troops struck tonight at Vyazma, last bastion of the great German offensive quadilateral which for 17 months had faced Moscow.

One powerful army drove southwestward directly on Vyazma from captured Gzhatsk, 36 miles to the northeast.

Another was headed southwestward from Rzhev, advancing on the strong German defense line running southward from Nikitinka through Dorogobuzh.