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