Which of the following types of military capabilities includes weapons of mass destruction?

The correct choice refers to non-conventional forces, which are defined primarily by their use of unconventional weaponry, including weapons of mass destruction (WMD). WMD includes nuclear, chemical, and biological weapons, which differ significantly from conventional arms due to their destructive capacity and strategic implications. Non-conventional forces are characterized by their ability to inflict substantial damage and create fear, making them a pivotal aspect of certain military strategies.

Conventional forces, on the other hand, utilize traditional military tools such as infantry, tanks, and aircraft, which do not include WMD. Strategic forces generally focus on long-range capabilities, usually with an emphasis on deterrent systems and may include nuclear capabilities but are structured around the strategic deployment of conventional and nuclear weapons. Support forces typically provide essential logistical help and operational support to main combat units and do not pertain to WMD.

Thus, non-conventional forces explicitly include weapons of mass destruction, defining their role and importance within military doctrine and international relations.