The unpopularity of the conflict

Does "the unpopularity of the conflict" mean "Crimean War was famous as a bloodletting war"?

Context:

The invention and development of photography in the early nineteenth century, combined with the unpopularity of the conflict itself, made possible Englishman Roger Fenton’s photographic record of the Crimean War (1854–1856), between Russia and an alliance of Britain, France, and Ottoman Empire. Photographic equipment was bulky and required long exposures, and Fenton was never near any action. In consequence, many of his images show camp and harbour scenes near Sebastopol on the Black Sea or the landscape of battle in its aftermath.