An "incursion" refers to a sudden or brief invasion or attack into a territory, often involving military forces. It typically implies a violation of borders or an unexpected entry into a space, which can lead to conflict or tension between groups or nations. Incursions can occur for various reasons, including territorial disputes, resource acquisition, or strategic advantages. In historical contexts, incursions have been significant in shaping political boundaries and relationships. For example, the Roman Empire frequently conducted incursions into neighboring territories to expand its influence. Similarly, modern-day incursions can be seen in conflicts involving nations like Israel and Palestine, where military actions often lead to disputes over land and sovereignty.