Explore olive-drab.com to understand its primary focus on U.S. military history and equipment. Specifically, identify details about the M4 Sherman tank, including its primary role, and find information about the M-1943 Field Jacket, noting its common use. State the site's focus and the requested details.
Navigate to 'http://olive-drab.com/' Upon successful loading, identify the primary subject matter or focus of the website from the homepage or main navigation. Locate information about the M4 Sherman tank. Extract the primary role of the M4 Sherman tank as described on the site. Locate information about the M-1943 Field Jacket. Extract the common use of the M-1943 Field Jacket as described on the site. State the primary focus of the website, the primary role of the M4 Sherman tank, and the common use of the M-1943 Field Jacket.
Successfully navigate to and load 'http://olive-drab.com/'. Clearly state the primary focus or subject matter of the website (e.g., 'U.S. Military History and Equipment'). Identify and state the primary role of the M4 Sherman tank (e.g., 'medium tank', 'main battle tank'). Identify and state the common use of the M-1943 Field Jacket (e.g., 'standard combat uniform', 'cold weather uniform').