Questions tagged [invasion]

For questions in which a power forcefully occupies and claims a territory owned by another power.

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3
votes
4answers
309 views

A weapon to rapidly change the Earth's atmosphere

I am seeking information and ideas from all you clever people. What I am trying to imagine is a chemical reaction that would change Earths atmosphere rapidly into something else which would be more ...
11
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8answers
2k views

Which US defense organization would respond to an invasion like this?

I'm at a critical point in a sci-fi novel where a couple of thousand Superintelligent artificial intelligences end up going haywire. Naturally, they're extremely intelligent, and thus, much harder to ...
11
votes
11answers
2k views

Alien invasion to probe us, why? [closed]

In popular culture on my Earth-like planet, alien-abduction stories, anal probing and conspiracy-theories are well-known but largely considered by mainstream culture to be delusions or fanciful ideas ...
1
vote
4answers
133 views

Plausibility of Self-Replicating Alien Drones Part 2

In my story, humanity comes under attack by extraterrestrial forces determined to sieze Earth's resources (water particularly). In my research it seems to be more plausible that aliens would attempt ...
0
votes
3answers
164 views

Plausibility of Self-Replicating Alien Drones?

In my story, humanity comes under attack by extraterrestrial forces determined to sieze Earth's resources. In my research it seems to be more plausible that aliens would attempt to exterminate humans ...
2
votes
6answers
300 views

What layout to use for towns and cities from a species under threat of extermination?

The premise is as follows: A species uses biological constructs to protect themselves from forces that attempt to exterminate them. These biological constructs have a far faster growth than the ...
1
vote
3answers
250 views

How to prevent allies from acting in an organized manner?

In my medieval world, a union of five states located on the south shores of a continent much like Europe is a subject of joined invasion by a northern continental empire and marine power coming from a ...
1
vote
3answers
164 views

Why can my civilian heroes defeat an enemy that has destroyed every military opposition? [closed]

In my scenario the world is being invaded by magical beings which quickly overwhelm our militaries because the way our realities interact: Our physical weapons have none or nearly no effect Our ...
0
votes
3answers
162 views

Ninja versus the Alien Invasion! [closed]

What would make ninja valuable in defending humanity from an alien invasion? Imagine a scenario like that of XCOM (old or new), Xenonauts, Phoenix Point, or other various Alien Invasion stories: the ...
4
votes
10answers
808 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
411 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 ...
-3
votes
2answers
152 views

How to solve NK? [closed]

How to solve NK? NK is developing a nuclear missile program that might target sooner or later, various states in the world. As a result, there could be casualties ranging from thousands to ...
16
votes
8answers
2k views

How to invade a planet

I am trying to make a space based strategy game, in which different factions try to take over all the planets in a solar system. The first step anyone should take to take over a planet would be to ...
10
votes
11answers
1k views

How to defend Earth against “alien bees tactic” in the modern era? [closed]

The enemy is approximately 100 million in number and are closing in fast from the orbit of Uranus, at a constant speed of 70 km/s (in near perfect vacuum condition). They are like clones and each one ...
-1
votes
1answer
87 views

The invasion of my world [closed]

My world has been invaded by a highly intelligent extraterrestrial species from other worlds. This species is also highly advanced in technology and civilized in a way that it out competes my world's ...
50
votes
19answers
7k views

Tactics to prepare for an alien invasion when nobody will believe you

This question is focused on what one man could do without the implicit resources on a larger scale. The year is 1980. Paul is a 17-year-old farmer in Iowa, with nothing really to his name besides his ...
-6
votes
2answers
404 views

30,000 rhinos were to attack South America, will they survive? [closed]

Say that 30,000 rhinos are going to attack South America. If they all team up in Cape Town, what will be the most likely route? What is the chances for the rhinos to succeed? How many of the rhinos ...
-1
votes
1answer
162 views

Two worlds merge together [closed]

There are the two worlds A and B, which are light years apart. In the 22nd century, a super-intelligent race with cutting edge technology from the world A tries to invade a world B which only has ...
5
votes
3answers
3k views

Cold War Alien Invasion Cover-Up

At some point during the Cold War Earth experienced one or more failed alien invasions. Both the US and USSR had to face down this alien threat, and acted accordingly. Established facts about the war:...
2
votes
10answers
748 views

Would this Alien race take over?

If 1,000 Aliens secretly invaded earth would they take over the earth and start anew? These Aliens crash landed on our planet long ago, so their technology for the most part is destroyed. The only ...
1
vote
4answers
763 views

Sudden, unexpected Blitz like attacks all over the world. What would happen next?

This question is inspired by Hellsing Ultimate. In it, a secret splinter division of the Nazis left at the end of World War 2 remained in the shadows building up power, until the events of the anime ...
0
votes
1answer
210 views

If a single alien landed on Earth with the intention of selling it from under us - how would they achieve this [closed]

My story revolves around the premise that an alien prospector discovered Earth at some point in the past armed with only one one weapons - longevity. Their intention is to mine the Earth and export it ...
15
votes
8answers
2k views

Alien Invasion: Why is the War so Long? [closed]

We, the Hrimfaxi, an extensive interstellar empire, are invading the Earth! However, these pesky humans have proved themselves to be extremely good at pouring out dakka and making things go kaboom. ...
29
votes
24answers
6k views

What could be a probable reason for an alien race to want to non-violently annex Earth?

An alien race suddenly appears and immediately declares that their intention is to conquer Earth. However, they are surprisingly amicable about it - they arrive, make known their intentions, maybe ...