Waverly Fire's Tell Hanes, left, and Southeast Fire's Trey Wayne, right, jump over freezing water to high five while participating in a Surface Ice rescue technician course on Friday, January 6, 2023, at Holmes Lake Park in Lincoln, Neb. The International Rescue and Relief department at Union college held rescue training course at Holmes Lake for students and local fire departments. (Photo by Kenneth Ferriera/Lincoln Journal Star via AP Photo)

Sergey, one of the participants of PARTISAN courses, poses for a portrait in an abandoned building in Olgino, St. Petersburg, Russia on November 23, 2016. Sergey came to St. Petersburg from the city of Cheliabinsk to attend an intensive seven-day program. Sergey is a businessman, a traveller and a blogger. His another passion are “men's hobbies”, that's why he participated in the paramilitary courses. (Photo by Alexander Aksakov/The Washington Post)

Rescuers work to put out fire outside a damaged residential building hit by recent shelling in the course of Russia-Ukraine conflict in Donetsk, Russian-controlled Ukraine on November 7, 2023. (Photo by Reuters/Stringer)

The Bridge “Rakotzbrücke” is pictured against trees in autumn colours in the the eastern German town of Kromlau November 4, 2014. (Photo by Hannibal Hanschke/Reuters)

SOFI TUKKER – Swing (Official Music Video). Sofi Tukker is a German American musical duo based in New York consisting of Sophie Hawley-Weld (German) and Tucker Halpern (American). In December 2018 their album Treehouse was nominated for a Grammy for Best Dance/Electronic Album.

German field telegraph operators at work in Warsaw. (Photo by Hulton Archive/Getty Images). 1st October 1914

A model poses at Checkpoint Charlie, a historic place in the German capital to promote the fashion magazine “Sous” on June 12, 2012. (Photo by Maurizio Gambarini)