The U.N. Security Council includes five permanent members—the U.S., Russia, China, France and the United Kingdom—as well as 10 nonpermanent members. U.S. allies are considering denouncing Russia’s arrest and detention of Wall Street Journal reporter Evan Gershkovich in the United Nations Security Council Monday, when Russia assumes the rotating monthly presidency of the body. Mr. Gershkovich, 31 years old, was detained March 29 while reporting in Yekaterinburg, more than 800 miles east of Moscow. Russian authorities have accused him of espionage, which the Journal and the Biden administration deny.

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