Strength Through Precision Blog
September – October 2026
‘One is none, two is one’
When I served in the military, we had a saying: “One is none, two is one.”
It sounds dramatic, but take away the military jargon and it’s actually a very relatable principle for everyday life: if something is important, having a backup can make all the difference when the unexpected happens.
Think about your morning commute. Your phone battery dies, your car won’t start, or you suddenly realise you’ve left your wallet at home.
The same principle applies to self-defence and personal preparedness.
If your plan for an emergency depends entirely on one person, one piece of equipment, one route home, or one method of communication, you have a single point of failure. It’s not necessarily about owning more. It’s about being prepared.
For civilians, “two is one” doesn’t mean buying two of everything. It means thinking ahead.
Have a second way to contact family if your phone network goes down. Know an alternative route home if your normal route is blocked. Keep a basic first-aid kit accessible. Have a flashlight when the power goes out, and more than one set of batteries for that flashlight.
The biggest redundancy is you. Your most important backup system is your own ability to think clearly under pressure.
Fitness, situational awareness, first aid, communication, de-escalation, and knowing when to leave a dangerous situation are all forms of preparedness. Unlike equipment, you take these skills everywhere—and they don’t require batteries.
The real lesson behind “one is none, two is one” is therefore quite simple:
Don’t build your safety around a single point of failure.
You don’t need a bunker or enough gear to invade a small country. Start with the things that matter most to you and ask yourself:
“What happens if this fails?”
Then have a sensible answer.
Because as always, failing to prepare, is preparing to fail.