The similarity resulted partly from the fact that the Char B1 was a specialised offensive weapon so it was designed with good trench - crossing capabilities .
A specialised offensive weapon is a break - through tank optimised for punching a hole into strong defensive entrenchments .
The similarity resulted partly from the fact that the Char B1 was a specialised offensive weapon , a break - through tank optimised for punching a hole into strong defensive entrenchments , so it was designed with good trench - crossing capabilities .