The pending Senate impeachment trial of former President Donald Trump is a security issue that federal law enforcement officials told lawmakers last week that as many as 5,000 National Guard troops would need to stay in Washington until mid-March,

The contingency force will reportedly help defend the Capitol from “impeachment security concerns,” including the prospect of mass protests coinciding with the trial of the Senate, expected to start on the week of February 8,┬áreports Politico.

According to the report, the soldiers on the ground have been given few details about the extension has been provided and wonder why they are being forced to endure combat-like conditions without a specific mission in the nation’s capital. Up to the beginning of February, about 7,000 troops will continue to provide riot protection, with that number declining marginally to 5,000 by the time Trump’s impeachment trial starts.

Around 25,000 troops were in Washington by Inauguration Day, where unprecedented security measures were put in place due to fears of nationwide armed demonstrations by Trump loyalists ahead of the event.