The 56 most powerful Reuters photographs ever taken

In the three decades since its inception, Reuters and its award-winning photographers have seen a lot, including wars and natural disasters, elections and scandals, protests and peace treaties. Reuters' photographers have been there to capture it all.

To mark the photo agency's 30th anniversary, Reuters has compiled its best and most important photos to date, which you can see here. To use their words, we wish them another 30 years of "creating iconic images, recognized around the world."

Editor's note: Many of the images in this slideshow depict graphic violence, injury, and nudity, and many are upsetting.

(All captions by REUTERS)