Germany's ambassador to the UK, Miguel Berger, has declined to apologise for a leaked call that inadvertently exposed details about British troops in Ukraine. The leak, attributed to Russia, revealed a conversation between Lieutenant General Ingo Gerhartz, head of the German air force, and other officers, discussing sensitive military information. This incident has raised significant security concerns among UK military sources and NATO allies. German Chancellor Olaf Scholz labelled the security breach as "very serious," prompting an investigation in Berlin. Berger, speaking on BBC Radio 4's Today programme, indicated that the breach likely resulted from one officer using an unsecured line, describing it as an "individual mistake." Berger criticised former UK Defence Secretary Ben Wallace's comments about Germany's vulnerability to Russian intelligence, calling them "extremely unhelpful" and a potential trap set by Russia to sow discord among NATO allies. The call, publicised in Russian media, was deemed a "hybrid attack" by Moscow by Berger. He stated that the German Defence Minister Boris Pistorius had communicated with allies to clarify Berlin's stance on the incident. Russia has used the leak to claim direct Western involvement in the Ukraine conflict.