This is the 336th most frequent Russian word.
вооруженных
"Armed"
Here, "вооружённые" is used as part of the phrase "вооружённые силы" (armed forces), describing a group equipped for military actions.
В стране были созданы вооружённые силы.
Armed forces were established in the country.
In this sentence, "вооружённые" describes the guards, referring to their possession of weapons.
Здание охраняли вооружённые охранники.
Armed guards protected the building.
Here, "вооружённых" describes unknown individuals, emphasizing that they are carrying weapons.