President Donald Trump’s approach to the drug war has been characteristically brazen. Since September, spectacular boat bombings by American forces in the Caribbean and the eastern Pacific have killed nearly 200 people, violating international law while doing little to curb the U.S. fentanyl crisis. Washington strong-armed Mexico into finally taking out the drug lord Nemesio Oseguera Cervantes, known as El Mencho, in February. Two months later, U.S. prosecutors indicted Rubén Rocha Moya, governor of Mexico’s Sinaloa state, on charges of aiding drug trafficking. In March, Trump hosted 12 Latin American leaders at a Florida country club for the first summit of the “Shield of the Americas,” a new, U.S.-led regional security initiative to counter drug cartels and transnational crime. Casting the effort as an “armed conflict” against “narcoterrorists,” Trump has designated Mexican and Venezuelan cartels as foreign terrorist organizations and is threatening to do the same for Brazil’s powerful prison-based gangs.…