Novaya Zemlya under naval escort to deliver desperately needed Lend-Lease supplies to northern Soviet seaports. Destruction of the Allied convoys was thus a top priority for the German Navy — and brought World War II to Novaya Zemlya. The most ill-fated and one of the largest Arctic convoys, code-named “PQ-17,” left Iceland on June 27, 1942. It consisted of thirty-four merchant ships, six destroyer escorts, fifteen additional armed ships (among which were two Free-French corvettes), and three small rescue craft. The fast-moving convoy encountered ice floes on June 30 and was forced to reduce speed. On the following morning, the convoy was
Novaya Zemlya effect two full weeks prior to its calculated return. They were met with disbelief by the rest of the crew (who accused De Veer of having used the old Julian calendar instead of the Gregorian calendar introduced several years earlier), but on January 27 the Sun was seen by all "in his full roundnesse". For centuries the account was the source of skepticism, until in the 20th century the phenomenon was finally proven to be genuine. Apart from the image of the Sun, the Novaya Zemlya effect can also elevate the image of other objects above the horizon, such as coastlines