"Generate an image intended for a circular badge that can be easily vectorized, featuring Gandalf as a modern soldier. The design should be minimalistic, with clear, bold lines and simple shapes, avoiding fine or intricate details to ensure compatibility with badge creation. Gandalf should appear in a simplified military-inspired outfit, including a basic vest and helmet, while retaining his iconic wizard characteristics such as a long beard and wide-brimmed hat, with a focused, determined expression. Include a circular border around the badge, which can be either thick with room for text, thin and uniform, or bicolored. Keep the background neutral and plain to maintain Gandalf as the focal element of the badge."