Libya arms embargo (2011)
During Libya's civil war, the UN Security Council imposed an arms embargo under Resolution 1970. Foreign powers then armed rival factions, and weapons flowed in despite the ban.
The embargo failed to stop the flow of arms to either side.
It remained in place for years, with repeated debates over enforcement and lifting.
Sudan parallels Libya: a UN arms embargo on a civil war where external actors supply both sides, and the council's bans are routinely bypassed.
