Mexico has deployed 8,715 troops to its southern and northern border to prevent migrants from the Northern Triangle countries from reaching the U.S.-Mexico border, as the United States faces a surge of illegal immigrants from Central America. The Mexican military has set up 347 immigration checkpoints along three main routes in Mexico—the Gulf, Central, and Pacific, Mexico Secretary of Defense Luis Cresencio Sandoval said during a news conference on Monday. Sandoval’s announcement comes as the Biden administration is sending a delegation to Mexico to discuss the ongoing immigration crisis. Although the Biden administration has refused to use the word crisis to describe the surge of illegal immigrants crossing the U.S.-Mexico border, the administration’s top two officials will travel to Mexico and Guatemala this week to speak with officials about how they can help stem the surge of migrants arriving at the southern border. Roberta Jacobson, the Obama administration ambassador to Mexico who now serves …