Which system would typically be used to create terminal defenses around major cities?

The correct choice for establishing terminal defenses around major cities is strategic surface-to-air missiles (SAMs). These systems are designed to engage and destroy hostile aircraft, particularly at critical engagement ranges, making them suitable for protecting urban areas, vital infrastructure, and high-value assets. Strategic SAMs are typically larger, have longer range, and are deployed in fixed installations to provide a comprehensive defense against aerial threats.

In contrast, mobile surface-to-air missiles are typically designed for more flexible deployment and often used in battlefield scenarios where adaptability is key. Man-Portable Air Defense Systems (MANPADS) are lightweight and operated by infantry, offering short-range air defense but lacking the reach and power needed for extensive urban protection. Adversary ground forces refer to any opposing military units and would not directly pertain to the question of defense systems designed to protect against aerial threats in urban settings.