Add Yahoo as a preferred source to see more of our stories on Google. ABC News' Matt Rivers went on patrol with Mexican marines in Cancun as authorities in the country step up security efforts. How ...

In part 2 of our Mexican Marines series, we break down the organization of a Marine Infantry Battalion from 2022 down to the squad level. Discover their weapons, vehicles, and unique rank structure, ...

Over three decades, Mexico’s Marines transformed from a near-extinct naval battalion into a 30,000-strong force patrolling both coasts and inland territories, capturing notorious cartel leaders like ...