National Guard personnel in 20 states and the District of Columbia have been activated or are on standby to aid local authorities ahead of Tuesday’s election, Pentagon officials said Monday. Around 125 National Guardsmen in 10 states have been activated for election support so far,

The National Guard advises state officials and works with law enforcement to prevent and respond to cyber threats.

The National Guard has hundreds of troops activated or on standby across the country to defend against cyber attacks and support operations during Tuesday’s presidential election.