CULIACÁN, Mexico. — As President Donald Trump has blown up one boat after another off Venezuela’s coast and declared an “armed conflict” against drug cartels, a question with stark consequences has arisen much closer to the United States.

Could Mexico, where far more drugs are made by some of the world’s most powerful criminal groups, be next?

“I would be honored to go in and do it,” Trump said in May, about using U.S. forces to hunt cartel members. “The cartels are trying to destroy our country. They’re evil.”

Yet three senior Mexican officials said in interviews that, although they are watching the U.S. military action with caution, Mexico is not worried — for now.

That is because, they said, the cooperation between the countries has become simply too robust and yielded too many resu

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