This is the 8673rd most frequent Japanese word.
旅団
"旅団" (ryodan) means "brigade" in English.
In this context, "旅団" refers to a military unit structured to undertake operations.
その旅団は新たな任務を遂行している。
The brigade is carrying out a new mission.
Here, "旅団" is used metaphorically to describe a group assembled for a specific adventurous purpose.
彼の小説では冒険の旅団が世界を巡る。
In his novel, the adventure brigade travels the world.
"旅団" is referenced as a specialized group among other military units in a region.