VANCOUVER - A gathering of foreign ministers in Vancouver today to discuss the perils posed by North Korea is expected to focus on sanctions, non-proliferation and diplomacy.

Eric Walsh, Canada's ambassador to Korea, says ministers will aim to identify which sanctions are being evaded and how to improve enforcement, while also discussing possible diplomatic solutions.

He says non-proliferation is also a key topic, and participants will look at recent developments in North Korea's nuclear program and what they mean for the region and the international community.

The federal government has faced criticism for not inviting Russia and China to the summit, which instead brings together ministers from countries that supported the United Nations force in the Korean War.

Walsh says the conference is not meant to replace other discussions that are taking place, including at the UN Security Council, and instead it is meant to complement those talks.

He says there's “no question” that China and Russia have critical roles to play in North Korea and the summit, co-hosted by Canada and the U.S., was not intended to exclude them.