After US's FORTRESS plan and UK's 'Be Ready' campaign, Japan issues advisory for households to prepare for emergencies. Here's all we know

After the US and the UK, Japan has urged households to prepare for emergencies by keeping essential supplies at home.

Japan's Disaster Management Minister Goshi Hosono said the government would issue an emergency appeal to citizens on November 2, when the country's new Disaster Management Agency begins operations. The appeal will encourage households to remain self-sufficient for at least three days during a disaster, with a week's worth of supplies considered preferable.

The UK, meanwhile, launched its updated 'Be Ready' campaign on October 22, asking households to prepare for up to 72 hours of disruption. The campaign covers potential emergencies ranging from severe weather and power outages to cyberattacks and threats from hostile states.


Earlier the Pentagon ordered every major US military base to plan for 90 days without outside help if a war cuts off power and supply chains, the Fortune reported.

What is Japan asking citizens to prepare for?

Japan's proposed appeal focuses on preparedness for major natural disasters, including earthquakes and a possible eruption of Mount Fuji. Officials have stressed that households should be able to manage if government assistance is delayed following a major emergency.

Hosono said households should keep at least three days' worth of food, water and toilet supplies, ideally extending their reserves to one week.

The recommendations include storing around three litres of drinking water per person per day, along with long-lasting food such as rice and canned goods. Households are also encouraged to prepare portable toilets or toilet bags for situations in which sanitation services are disrupted.

Japan faces recurring risks from earthquakes and other natural disasters, making household preparedness an established part of its disaster-management approach.

Why has the UK urged households to keep emergency supplies?

The UK's 'Be Ready' campaign advises households to maintain supplies that would help them manage for three days if essential services were disrupted.

The recommended items include bottled water, non-perishable food, a torch, spare batteries, a first-aid kit, cash and a battery-powered or wind-up radio. The government says these supplies could prove useful during severe weather, power cuts, cyber incidents or interruptions to essential services.

The campaign also comes amid warnings from Defence Secretary Wes Streeting about the growing capabilities of hostile states. Streeting has said the UK must prepare for the possibility that adversaries could be capable of attacking the country by 2030.

However, the government has described the household guidance as a general preparedness measure rather than a response to one specific impending emergency.

What about the US?

In the US, the Pentagon is reportedly developing a plan requiring every major military installation in the continental United States to sustain essential operations independently for at least 90 days. As per Fox News Digital, the initiative, called FORTRESS (Federal Operations for Resilience, Troop Resources, Energy, Supply, and Survivability), aims to strengthen military readiness in the event of a major conflict or disruption to critical infrastructure.

The proposed 90-day requirement would extend beyond electricity to include water, fuel, communications and other essentials needed to maintain operations during a prolonged emergency. The plan envisages using portable nuclear reactors, large-scale battery storage and microgrids that can disconnect military bases from civilian power networks. FORTRESS also envisages strategic reserves of ammunition, fuel, critical minerals, electronics, spare parts and medical supplies. It would require at least two qualified supply or production routes for the military's most critical requirements, reducing dependence on any single factory or supplier.

The United States also has established emergency-preparedness guidance recommending that households keep at least three days' worth of non-perishable food and water. Its Ready.gov programme advises people to prepare for potential emergencies, including natural disasters and other disruptions.

Netizens ask: ‘Something is about to happen?’

Japan's announcement has circulated widely on social media, with some users interpreting the timing of the preparedness messages as a sign of a possible wider crisis.

One X user wrote: “Now I'm starting to get worried. UK, US Japan, all saying the same thing at the same time. Something is about to happen.”

Another user pushed back against the interpretation, replying: “The context is people in the path of the typhoon.”

A third wrote: “A minister just told a whole country to keep food and water in the house, because help might not come. That is the warning. The rest is people pretending it is routine.”

Other social media posts have speculated about possible events ranging from a Mount Fuji eruption to another pandemic. These claims remain speculation and are not established by the preparedness announcements.

Do the advisories mean something is about to happen?

It is not known if the actions of the US, UK and Japan are coordinated. Japan's appeal focuses on the country's exposure to major natural hazards, while the UK's campaign addresses a wider range of possible disruptions. The US has also long advised households to maintain basic emergency supplies.

The common message is that essential services may not always be available immediately after a major emergency. Keeping food, water and sanitation supplies at home can help households manage during that gap. The timing of the announcements may fuel online speculation, but it is not evidence of a coordinated warning about an imminent global event.