Which of the following is NOT a location commonly used to enter or depart a country?

The correct answer is that a Land Port of Entry is not typically cited as a location commonly used to enter or depart a country compared to the others listed.

In the context of military or international logistics, an Air Port of Embarkation (APOE) is a facility where personnel and equipment are loaded onto aircraft for overseas movement. Additionally, a Sea Port of Debarkation (SPOD) serves a similar purpose, facilitating the loading and unloading of maritime vessels. An Air Port of Debarkation (APOD) is where personnel and cargo arrive by air. Each of these terms directly pertains to specific air or sea locations that handle international movement, functioning as vital nodes in transportation networks for entering or departing countries.

While Land Ports of Entry are indeed used for border crossings, they are not part of the specialized terminology used predominantly in military or logistic contexts relating to the defense transportation system. Instead, they are general terms describing locations where customs and immigration checks occur for road or rail traffic crossing borders. This distinction helps clarify why Land Port of Entry does not align with the specialized types of entry and departure points highlighted in the question.