Explore olive-drab.com to understand its primary purpose and the main topics it covers. Specifically, find and state the main categories of information or products presented on the homepage or an 'About Us' section, if available.
Navigate to 'http://olive-drab.com/' Upon successful loading, identify the main sections or categories of content presented on the homepage. If an 'About Us' or similar informational page is accessible, navigate to it to gather more details about the website's purpose. Synthesize the identified main topics and purpose of the website.
Successfully navigate to and load 'http://olive-drab.com/'. Clearly state the primary purpose or subject matter of the website. List at least three distinct main topics or categories of content found on the website (e.g., 'Military History', 'Vehicle Restoration', 'Uniforms', 'Equipment').