Ukraine's navy has revealed a fresh paint job on some of its vessels, which appear to have adopted a World War I-era tactic of using dazzle camouflage. The Ukrainian navy shared the images on social media on Thursday, showing versions of the paintwork. The boats were pictured taking part in a demonstration for naval experts from Denmark, which is cooperating with Ukraine on various naval issues, Ukraine's navy said. Dazzle camouflage first emerged in World War I as a means to confuse enemy submarines and reduce their ability to effectively aim torpedoes. Ukraine's navy has no large ships on active duty and consists mainly of small vessels, like those seen in the recent images.

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Persons: Tamar, HMS, Aaron Chown, Denmark's Organizations: Artillery, Ukrainian Navy, Royal United Services Institute, BBC Locations: Ukrainian, Denmark, Ukraine, Russia, Sevastopol, Crimea, Novorossysk