If you don't know anyone here, if you've ever worked for a place that has security guards, contact them to inquire about their jobs and to see if they know of any jobs they know of.
You can also use the My Security Training resources for the job placement office to help you find a job in the security field. This resource is useful not only for finding available security jobs in the country, but also for serving various industries.
The US Office of Personnel Management website provides a list of various federal agencies around the world. All you have to do is browse through this job listing which lists security jobs in the United States and around the world, with varying degrees of complexity and level of danger that you face.
The fact is, you don't need any special training to get a job in the security field. However, if your job requires you to be armed while on duty, you'll need to get a gun license.
However, as a security guard, you need a lot of patience, because you have to be prepared to just watch the video monitor for hours on end and especially to patrol for hours on end. As a security guard, he rarely gets angry. Though, peace and no exception is the norm that you should follow as a security guard.