Ukrainian President Volodymyr Zelensky thanked visiting German President Frank-Walter Steinmeier on Tuesday for Berlin’s assistance in the conflict with Russia. “We will strengthen cooperation with Germany,” Zelensky said in his daily video address, in which he described Steinmeier’s visit to Ukraine in detail. During his visit, Steinmeier had to take cover in an air raid shelter and experienced first-hand the importance of a functioning air defence system, the Ukrainian president explained. He also praised the recently delivered German Iris-T air defence system as “highly efficient. We’re wai…