Who has led the world in invasions over the past three centuries (1725–2025)? At first glance, the answer might seem straightforward, as all the information is publicly available. However, defining invasions is not so simple, as invaders rarely describe their actions as such. Instead, they often frame them under terms like “liberation,” “colonization,” “free trade,” or “civilization,” making it harder to identify and categorize these events.

To determine the "king of invasions," we must first establish a clear definition. Here, we count military actions that cross national borders, while excluding internal conflicts. Based on the 42 invasions I found from internet research, three nations share the title of the most frequent invaders over the past three centuries.