A place of confrontation.
A barrier constructed across a road, especially as a military defence
An obstacle, barrier, or bulwark.
to close or block a road etc., using a barricade
to keep someone in (or out), using a blockade, especially ships in a port
Widespread fighting.
Extreme force.
Injustice, wrong.
Physical action which causes destruction, harm, pain, or suffering.
To subject to violence.