"Create a clean, easily vectorizable circular badge image of Gandalf depicted as a modern soldier. The design should avoid small or intricate details to keep the lines and shapes bold and clear. Gandalf should wear simplified military-inspired attire, including a basic vest and helmet, while retaining his iconic wizard features, such as a long beard and wide-brimmed hat, with a strong and determined expression. The badge should have a circular border, either thick with text, thin and uniform, or bicolored. The background should remain simple to keep Gandalf as the main focus."