What is the difference using react-router and the express routes.js
<p>I am doing a project using react, redux and express, I don't understand what is the difference between react-router and the express routes.js, did I need to combine the two or just use one ?</p>

<p><a href="https://github.com/reactjs/react-router" rel="noreferrer">https://github.com/reactjs/react-router</a></p>

<p>Thanks for the help :)</p>