A message from our CEO about the future of Stack Overflow and Stack Exchange. Read now.

Questions tagged [military-defense]

For questions about strategies and structures for defending from a particular type of attack

Filter by
Sorted by
Tagged with
38
votes
8answers
9k views

How can a defecting pilot improve their odds of survival?

A bit of context first, this question is inspired by the famous North Korean pilot No Kum-sok, and his defection to the United States during the Korean war. A quick summary, he breaks formation, ...
8
votes
9answers
616 views

Would it be dangerous for the average country to drop its army?

The money a country spends in defense is usually really high. There are many countries in a world like ours where the army is hardly ever used. Could it be possible for a country that is surrounded by ...
52
votes
26answers
16k views

What would induce a country to actively guard an empty wasteland?

One of my favourite stories features a major fortress built on the edge of a poorly surveyed wasteland. In that context, the Butte makes sense, as a safety measure against the unknown. Once the wastes ...
3
votes
6answers
221 views

Economy vs Defensibility for cities?

Ok this is 2 questions but they are so closely related I'm sure it's OK The Premise The world is geographically similar to Earth. The kingdom has the same climate as Germany. The technology is High ...
8
votes
3answers
480 views

The feasibility of a top-secret naval base located on Île Pott

There's this organisation, which has a global system of secret and sensitive military bases situated in various geopolitical regions, not unlike those of the US military. One military installation is ...
7
votes
5answers
2k views

Sci-fi Instant Wall Foam

It seems I've been seeing a lot of uses for foam on this site, from a weapon to a spaceship defense mechanism. However, the details on what the foam is made of and how it works always seem lacking to ...
4
votes
3answers
656 views

How many troops would be needed to occupy a city with a population of 2.9 million? [closed]

I have a city that has a population of 2.9 million and an urban footprint around 2,037 square kilometres. For reasons unknown, it's been sealed off from the outside world by a shadowy military ...
2
votes
2answers
138 views

Primitive AA defense

In scenario I am talking about there are civilizations of primitive sentient aliens, and they have acces to big (able to fly with ~100 kg of cargo including passengers) flying creatures which have ...
22
votes
11answers
9k views

Tactics and strategy an army can use to counter Human Wave attacks?

TL;DR: What tactics can a professionally trained army use against a horde of untrained conscripts using human wave attacks? (This scenario takes place in the very-near future.) Background ...
26
votes
18answers
8k views

Can spacecraft defend against antimatter weapons? How?

Here is what we know: We have the means to create stable antimatter We can direct it in a beam It can travel nearly as fast as light with ease Antimatter and matter combine in dangerous ...
0
votes
3answers
315 views

What type of weapon makes the most sense for use on a spaceship [duplicate]

Supposing your spaceship was long and narrow, what type of weapon would be most practical on a spaceship made of the materials we make spaceships out of today with scaled hull thickness to equal the ...
38
votes
20answers
10k views

How would space battles alter combat tactics?

A thought occurred to me while watching Ender's Game. Why are these two fleets in space lining up like two armies during the revolutionary war (or pick your war of the musket/volley era)? Thinking ...
6
votes
3answers
502 views

Character must escape from a CERN/DARPA-like facility - Secrecy

This story is meant to be an introduction and background for a short videogame I'm working on. Our hero works at a secret, hidden facility. The secret is kept among every staff member working there. ...
0
votes
2answers
282 views

Shard Technology Uses For City-Defenses [closed]

In my Fantasy world there is a magical resource called shards that is as follows: Shard Powers: For all the people of the world; the benefits and dangers of using shards are well known. Shards are ...
2
votes
3answers
205 views

A tour of the kingdom, including the deserts

Rivers are said to be the centre of life and civilisation. So, in my world, there are plenty of rivers and lakes, and there are cities/towns all along those waterways. Also, there are port cities by ...
22
votes
10answers
5k views

How to prevent your enemies from digging under you?

So, my world is a sphere (roughly) within hyperbolic space. Since the surface areas of spheres in hyperbolic space grows exponentially with radius, it has the same surface area of the Earth (indeed, ...
0
votes
2answers
318 views

How big of an asteroid could all the nuclear bombs of the world move? [duplicate]

More than the threat of nuclear war, we should worry more about asteroids destroying the Earth. For the first time we could save ourselves from that happening. Take all the nuclear missiles of the ...
47
votes
17answers
4k views

What would be the most effective way of keeping a psychopath with a spaceship from wreaking severe havoc in a suicide crash?

Any spaceship over several hundred tons is an extremely dangerous weapon in the wrong hands, particularly if it's intended for reentry. Made mostly of metal and possibly shaped to be able to breach ...
16
votes
7answers
2k views

How does a castle have sufficient anti-air defenses while still looking like a castle?

Castles, particularly Concentric Castles, are great to have against the technology of the time; swordsmen, crossbowmen. They're less great against ornery wizards and capricious dragons. The lords ...
50
votes
9answers
6k views

What would the fortifications of an underwater city look like?

Merpeople, along with other similar underwater humanoids, are often depicted as living in great cities beneath the waves. These cities have many positive things going for them: plenty of real-estate, ...
7
votes
7answers
2k views

How could an airplane defend against an electromagnetic pulse attack from another airplane?

Two nations are at war over something rather trivial, but offenses have been perpetrated here and there such that the conflict has escalated from a couple of guys shooting each other to massive ...
20
votes
13answers
6k views

How could a smaller country successfully take control of a much larger country?

Imagine a scenario where a country around the size of New Zealand (in GDP, population, military strength and other areas) decides that it wants to take control of or at least destroy a much larger ...
5
votes
4answers
536 views

How long would it take to 'Raise the Alarm' in a medieval city?

I'm writing a story that involves the protagonists opening the gates of a medieval city to allow an attacking army through - and I need to know how long it would be before the city's garrison realizes ...
0
votes
5answers
277 views

Fleet defenses against massive creatures [closed]

In my fantasy world, humanity thrives on massive migratory fleets, moving in large numbers between the sparse islands. However, there are massive creatures that live in these places in between, ...
3
votes
6answers
2k views

How would real-life military and police deal with predatory alien threat in a city?

There's a lot of short stories and sci-fi movies depicting stealth alien invasion, typically on American country village or even a big city. We're not talking war with advanced sci-fi tehcnology - we'...
37
votes
7answers
9k views

Are underground shelters defensible?

In many survivalist stories the intrepid heroes wisely (given the impending plot line) decide to build and stock a fallout shelter. When the inevitable catastrophe comes they move into their ...
27
votes
6answers
10k views

If the Cold War went hot in the early 1970s, would the Warsaw Pact be able to reach the Rhine River?

So, let us go back in time to the year 1973, specifically around October of 1973; the time frame of the Yom Kippur War. In our timeline, the conflict almost became WWIII after the Soviets threatened ...
2
votes
8answers
941 views

What would a colonial military on another planet near a wormhole look like?

Imagine an off-world colony of maybe 100,000 people, governed at least partially locally, partially on Earth. What would the permanently assigned military for this colony look like? How would physical ...
0
votes
9answers
1k views

Defeating this fleet [closed]

I was watching the series called: "Once Upon a Time... Space" (I could only find the hungarian dub, which is my native language), that I want to make a fanfic about, and I ran into a problem.... The ...
2
votes
8answers
2k views

Could This Sort of Castle Defense Work?

This is a basic map of a castle in an alternate Earth. It was built with two walls, both of which were always built in a circle, with four broad, circular towers/gatehouses built in four cardinal ...
28
votes
15answers
9k views

Zombie killing structure that's easy to construct, durable and low maintenance?

What would be an effective zombie killing structure that an average person could put together in a typical suburban neighborhood? Previous discussion that touched on the topic often rely upon ...
2
votes
8answers
603 views

How can people kill considerably death-resistant aliens with everyday objects?

In a world where people find aliens invading their homes, with what household object or objects found on the street or nearby, could people defend themselves against the invader? The rules of the ...
4
votes
10answers
909 views

How could Hitler's planned invasion of England in September 1940 actually have succeeded?

This is a rewrite of this question in an attempt to reduce its scope and bring it back within the sites guidelines. I was writing a story set in an alternative history in which Nazi Germany occupies ...
1
vote
1answer
459 views

What would have happened if Hitler had launched operation Sea lion (the planned invasion of England in September 1940)? [closed]

I'm writing a story set in an alternative history world but after some research I suspect the scenario I intend to use is unrealistic, so I would like to understand the likely outcome of Hitler’s ...
5
votes
3answers
1k views

Can magnetic eddy currents stop a bullet?

This is theory for a science fiction scenario. For the sake of speculation, suppose that power is not an issue. I've done reading on eddy currents, and I know they can exert drag forces on objects ...
-1
votes
1answer
210 views

How do the strategic assumptions and goals of a space force affect the overall effectiveness of the space force? [closed]

So, to start the question, I want to have a small assumption here: Let us assume that we are an interplanetary civilisation. We have spammed much of the Solar System, but it is not all sunshine and ...
8
votes
12answers
4k views

How do I build a wall to repel World War Z's fast zombies?

What would be the best wall profile and size for a prepared anti-zombie fortification? I am trying to protect against fast zombies like the ones in the movie adaptation of World War Z, who can climb ...
7
votes
4answers
274 views

The place of cannons and ballistae in a world without metal

I've mentioned before that I'm working on a fantasy world where most of the metals we rely on in our world are fairly uncommon outside of a single, inhospitable region of the world. The vast reserves ...
30
votes
4answers
2k views

How would the design of a habitable underground fortification differ to that of a castle?

As a follow up from riding flying creatures to attack castles, let's assume that the practice is now so prevalent that a standard castle is no longer defensible. How would the fundamental design of a ...
5
votes
5answers
1k views

Would an actively camouflaging airship cast a shadow?

I am currently writing about a military society that enforces its subjects using Acer-class airships. Picture the USS Iowa, except flying and with enough supplies for a year in the air. The only ...
-2
votes
5answers
151 views

How can you create an impenetrable defense to survive a world war? [closed]

You are the leader of a country on Earth, 2017. Some time soon, a world war will break out, in which many powerful countries will join together and attempt to destroy your nation. Your only interest ...
3
votes
1answer
131 views

How to quarantine an entire peninsula?

The general backstory for the world I'm building is that the entire dwarven homeland in Ireland has to be quarantined after a S.T.A.L.K.E.R.-style disaster in the mid-19th Century. All 3000-3500 ...
11
votes
15answers
6k views

Is it viable to wall modern cities against “zombies”?

Let's say the city covers about 40 square miles (104 square kilometers), that machinery and some oil refineries are still usable (for construction vehicles), and that there is a lot to salvage in way ...
5
votes
3answers
896 views

What circumstances would necessitate an international “Supernatural Police” organisation?

Some background on this question, I was trying to construct an international organisation whose main job is to patrol, investigate and protect its member countries from anomalous threats that have ...
47
votes
5answers
4k views

How would the existence of large rideable flying creatures have changed the design of castles?

I'm thinking not only of the impact they would have had on how you would defend from an aerial attack, but also that they could be used for much more specific bombardment by dropping large rocks and ...
0
votes
3answers
400 views

Creating a shield with air?

I'm thinking about air shield that can protect man from flying arrows, bullets, etc. I did some research about bulletproof vests and it turned out that many of them were made of hard materials or ...
7
votes
3answers
209 views

What precautions would a space navy crew take when co-operating with an enemy android?

After a politically destabilizing incident that could lead to a regional war, a sentient android from a foreign government has offered to help the navy track down a space pirate turned fanatical ...
4
votes
3answers
629 views

Is it theoretically possible to use electromagnetic, RF or heat energy to produce a ship forcefield?

I'm looking for a credible technology which could be used as a shield for a spacecraft sometime within the next 100-200 years. Not necessarily a spherical shield which covers the whole ship, it would ...
2
votes
3answers
135 views

Funding custom weapon development in a friendly foreign country?

If you have a country with unique needs for some kind of weapon system but it doesn't have a domestic industry to produce it, is it possible to fund the development in a friendly foreign country?
2
votes
3answers
582 views

How would a port city located on a river on the border defend itself?

This is my first question on this site! So, I have been trying to figure this out. I have a port city that is located at the mouth of a river. The problem is that the river forms part of the border ...