freeCodeCamp/curriculum/challenges/english/10-coding-interview-prep/take-home-projects/show-national-contiguity-with-a-force-directed-graph.md

---
id: bd7198d8c242eddfaeb5bd13
title: Show National Contiguity with a Force Directed Graph
challengeType: 3
forumTopicId: 302367
---

## Description
<section id='description'>
<strong>Objective:</strong> Build a <a href='https://codepen.io' target='_blank'>CodePen.io</a> app that is functionally similar to this: <a href='https://codepen.io/freeCodeCamp/full/xVopBo' target='_blank'>https://codepen.io/freeCodeCamp/full/xVopBo</a>.
Fulfill the following <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>user stories</a>. Use whichever libraries or APIs you need. Give it your own personal style.
<strong>User Story:</strong> I can see a Force-directed Graph that shows which countries share borders.
<strong>User Story:</strong> I can see each country's flag on its node.
<strong>Hint:</strong> Here's a dataset you can use to build this: <a href='https://raw.githubusercontent.com/DealPete/forceDirected/master/countries.json' target='_blank'>https://raw.githubusercontent.com/DealPete/forceDirected/master/countries.json</a>
<strong>Hint:</strong> You can create a spritesheet of national flags at <a href='https://www.flag-sprites.com' target='_blank'>https://www.flag-sprites.com</a>.
When you are finished, include a link to your project on CodePen and click the "I've completed this challenge" button.
You can get feedback on your project by sharing it on the <a href='https://forum.freecodecamp.org/c/project-feedback/409' target='_blank'>freeCodeCamp forum</a>.
</section>

## Instructions
<section id='instructions'>

</section>

## Tests
<section id='tests'>

```yml
tests: []

```

</section>

## Challenge Seed
<section id='challengeSeed'>

</section>

## Solution
<section id='solution'>

```js
// solution required
```

</section>