p.(27) To protect the rights and freedoms of mini-figures the world over, you can now build a sophisticated anti-aircraft tank for the best protection. The tank includes two 50mm surface to air cannons and a third 50mm cannon to protect from ground attacks. An adjustable roof gives you access to a command and control center with surveillance and intelligence capabilities. LEGO bricks are a great way to stimulate the creative skills in any child or adult. 1st Foundations is proud to offer these instructions on behalf of the NH LEGO League. The NH LEGO LEAGUE is an organization founded to help develop social, creative, and educational skills through the use of LEGO bricks.