Sentence 1: The destruction of Popov 's Mobile Group and the 6th Army during the early stages of the German counterattack created a large gap between Soviet lines .
Sentence 2: The destruction of the mobile group of Popov and the 6th army during the early stages of the Soviet counterattack caused a large gap between German lines .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?