Complex sentence: The Vimy Foundation believes this underlines the importance of what it is aiming to accomplish in raising awareness, and that such developments underline that the most credible of groups are recognizing the importance of Vimy.
Split into simpler sentences: The Vimy Foundation believes this underlines the importance of what it is aiming to accomplish in raising awareness. Such major developments underline that the most credible groups are recognizing the importance of Vimy.