Natural gas started flowing from Russia to China for the first time on Dec. 2 when Russian President Vladimir Putin and China’s leader, Xi Jinping, officially launched the initial phase of a huge new pipeline known as the Power of Siberia. Gazprom, Russia’s state-owned energy giant, claims it is expected …

Four rockets were fired at the fortified compound that houses the U.S. Embassy in Baghdad, and suspicion fell on pro-Iran militias. Four rockets targeted the U.S. Embassy in Baghdad on Thursday night, the latest in a series of aerial attacks amid Iranian threats and political violence as Iraq’s factions struggle …

When the Soviet Union collapsed three decades ago, the European security architecture suddenly became uncertain, its future put in play. After all, much of the postwar balance of power in Europe—and the world—had rested on the icy pillars of the Cold War, pillars that in 1991 abruptly melted. It didn’t …