The Army is ramping up security at Fort Bliss, its sprawling West Texas post near the US-Mexico border.
The tighter security is to include random vehicle checks and access limited to Defense Department personnel at some of its gates.
The move comes a week after key lawmakers warned that the United States is being eyed as a target by militants of the group that calls itself the Islamic State.
A Fort Bliss spokesman said the new measures have been taken to comply with Department of Defense directives and bear no relation to any threat by terrorist organizations or the upcoming anniversary of 9/11.
In a statement last week, Homeland Security Secretary Jeh Johnson said there is no credible or specific threat to the homeland by that extremist group.
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