Expresses 'either way', 'in any case', 'be it...', used when presenting two alternatives.
Long explanation:
The ~にしろ~にしろ grammar point is used to present two alternatives and emphasize that regardless of which one is chosen or occurs, the result or conclusion remains the same. It can be translated as 'either way', 'in any case', or 'be it...'. The formation differs depending on whether it is used with a verb, い-adjective, な-adjective, or noun.