Which of the following is NOT a type of multinational operation organizational structure?

The classification of multinational operation organizational structures includes integrated, lead nation, and parallel approaches, all of which focus on how participating nations coordinate and collaborate during joint missions. Each of these structures has its unique characteristics that facilitate effective cooperation and resource sharing among allied forces.

The integrated structure emphasizes collaboration across all participating nations, where forces operate together with a high level of interoperability and shared command and control. The lead nation structure designates one nation to take the lead in planning and execution, allowing for streamlined decision-making and focused command. The parallel structure allows nations to operate semi-independently but in a coordinated manner, achieving shared objectives without losing their individual operational autonomy.

In contrast, sequential operations refer to actions that are carried out in a step-by-step manner rather than simultaneously. While they can still be part of multinational efforts, they do not represent a distinct organizational structure like the other three options. This means that sequential operations do not fit within the typical frameworks used to organize multinational operations, highlighting why it is the correct choice as the option that does not represent a type of multinational operation organizational structure.