Flag of Mauritania, adopted in 2017.
Todofai
<span class="int-own-work" lang="en">Own work</span>, <b>based on this construction sheet: <a rel="nofollow" class="external text" href="https://www.crwflags.com/fotw/flags/mr%27.html"><i>Flags of the World</i>: Mauritania - Construction Sheet</a></b>.