Sentence 1: 162 . Fighter Escadrille was a unit of the Polish Air Force at the start of the Second World War . The unit was attached to the Łódź Army .
Sentence 2: The Fighter Escadrille was at the beginning of the Second World War a unit of the Polish Air Force , which was attached to the Łódź army .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?