
Hundreds of thousands of law enforcement, military and security officials will be deployed in cities around the world to keep New Year's Eve revelers safe as they gather to welcome 2018.
In the United States, New York City officials announced they would use two-step screening, snipers, street closures and specially trained dogs to secure Times Square, where an estimated 2 million people will gather to watch the annual ball drop at midnight.
In Las Vegas, 300 National Guard troops will join more than 1,500 police officers to keep safe the city's famed Strip, home to a number of casinos, resorts and hotels. The security precautions to protect the expected crowd of more than 300,000 will include snipers positioned on rooftops and double the number of emergency response teams from previous years.
In South America, Rio de Janeiro police plan a security force of 12,000, nearly 20 percent more officers than last year, for New Year's events. Military police say they are suspending vacations for security personnel to ensure there are enough police officers on duty.