Is the US preparing for WW3? What the Pentagon has and has not said about attacks at home

What is being shared

Searches for "is the US preparing for WW3" keep turning up a handful of headlines. The most shared is Fox News's "Pentagon warns future wars may hit US soil as 'direct military threats' grow," first published on January 26, 2026 and still circulating. Another, from October 15, 2026, reads "America's next war could reach US soil, top Army general warns."

Read on their own, they sound like a warning to the public that a war is coming to American towns. The documents behind them say something narrower. We covered two related stories last month: the Pentagon's plan for bases to run on their own power, checked here, and the Global Thunder drill, explained here.

What the Pentagon actually said

The first headline rests on the 2026 National Defense Strategy, published by the Department of War in January. It says: "More direct military threats to the American Homeland have also grown in recent years, including nuclear threats as well as a variety of conventional strike and space, cyber, electromagnetic warfare capabilities." It names homeland defense first: "the U.S. military's foremost priority is to defend the U.S. Homeland."

It names specific threats. It says North Korea's nuclear forces "present a clear and present danger of nuclear attack on the American Homeland," and that Russia has nuclear, undersea, space and cyber capabilities "that it could employ against the U.S. Homeland." Its answers are military ones: Golden Dome missile defense, counter-drone measures, and "bolstering cyber defenses for U.S. military and certain civilian targets."

The second headline rests on an interview. The Army's acting chief of staff, Gen. Christopher LaNeve, told Fox News that "power projection will be contested" in a fight with a major rival, meaning bases and supply lines at home could be disrupted before troops deploy.

What is confirmed, and what is not

Confirmed: the Pentagon's strategy says threats to the homeland have grown and makes defending it the military's top priority. On September 30, 2026, the Secretary of War announced FORTRESS America, which the department calls its "national insurance policy for the American homeland." It aims for bases that stay powered "even if the civilian grid is taken down by cyberattack or sabotage," and "deep strategic reserves of munitions, fuel, medicine, and blood."

Not in any official source we read: a warning that an attack is expected, a date, or any instruction for households. The strategy and the FORTRESS release are about military forces, bases and supply chains. DHS's National Terrorism Advisory System, which DHS says is "designed to communicate information about terrorist threats" to the American public, shows "There are no current advisories" as of November 13, 2026. Its most recent bulletin, issued June 22, 2025, expired on September 22, 2025.

Why the military plans this way

Planning for the worst case is the military's job, and a defense strategy says out loud what it is planning for. Saying that rivals could strike the US is not the same as saying a strike is coming. None of these documents gives a forecast, and we don't make one.

Some of what people notice is routine. On October 22, US Strategic Command "began its annual Global Thunder nuclear command and control exercise." It said: "As in previous years, Global Thunder 27 may include an increase in bomber and other aircraft flights throughout the exercise." We could not find an announcement of when it ends.

What it means for your home

Nothing in these documents asks you to do anything. The steps that make sense are the same ones that help in a storm, a long outage or a cyberattack. Ready.gov's pages on them were last updated between May and September 2026, and they give everyday all-hazards advice, with no new warning about war.

Make a plan: Ready.gov says "Your family may not be together if a disaster strikes," so agree how you'll reach each other and "Establish a family meeting place that's familiar and easy to find." Our family emergency plan guide walks through it. Build a kit: Ready.gov says "you may need to survive on your own for several days" and lists water at "one gallon per person per day for several days." Our emergency kit checklist has the full list.

Know how warnings reach you. Ready.gov says Wireless Emergency Alerts come to your phone with "no need to subscribe," and the Emergency Alert System "allows the president to address the nation within 10 minutes during a national emergency." NOAA Weather Radio also carries alerts of "non-weather emergencies such as national security or public safety threats." Our guide to emergency alerts on your phone shows how to check they're switched on.

• Make a household plan with a meeting place and a way to contact each other
• Keep water and food for several days, plus a battery or hand-crank radio
• Check that emergency alerts are on in your phone's settings
• For a nuclear emergency, Ready.gov's rule is short: get inside, stay inside, stay tuned

What not to do

Don't buy shelter supplies, potassium iodide or months of food because of these headlines. Nothing official asks for it, and the kit Ready.gov recommends already covers the emergencies households are far more likely to face. If you want to know the official advice for a nuclear emergency anyway, Ready.gov says to stay inside "for 24 hours unless local authorities provide other instructions." Our fallout shelter guide explains where to shelter at home.

Be wary of posts and videos that claim a war has started or that the government has ordered people to stock up. Check them against DHS's advisory page and your local emergency officials before sharing.