Are UN peacekeeping operations in trouble?

International defense ministers are meeting in the UK to discuss ways to improve UN peacekeeping missions.

The United Nations has more than 100,000 peacekeepers, serving in 16 missions on four continents.

Their goal is to protect civilians, maintain peace and security.

But their operations have caused controversy, including allegations of sexual abuse.

Demand for peacekeepers in conflict zones continues to rise and the UN is struggling to keep up.

Twelve months after world leaders pledged to strengthen and modernise peacekeeping operations, Britain is hosting a follow-up to see where things stand.

Defense ministers from more than 70 countries flew to London to discuss how to improve operations.