President Trump’s decision to launch a secretive predawn military operation in Venezuela to grab President Nicolás Maduro is a blatant assault on the international legal order. The action threatens to end an era of historic peace and return us to a world in which might makes right. The cost will be paid in human lives.
Last year marked the 80th anniversary of the 1945 United Nations Charter, a document signed by 51 nations at the close of World War II. The signatories pledged to act “to save succeeding generations from the scourge of war.” The great powers have not gone to war with one another since, and no U.N. member state has disappeared as a result of conquest.
But over the past decade, that peace has begun to unravel. Today, it is on the precipice of collapsing altogether. If that happens, the consequences will be catastrophic. We can already see the devastating cost: According to my calculations, from 1989 to 2014, battle-related deaths from cross-border conflicts averaged less than 15,000 a year. Beginning in 2014, the average has risen to over 100,000 a year. As states increasingly disregard limits on the lawful use of force, this may be just the beginning of a deadly new era of conflict.