 
<translate> Bayanin da ya dace don amsa tambayar da ke sama shi ne: Bruno ɗan yaro ne ɗan shekara 9 da ke girma a lokacin Yaƙin Duniya na II a Berlin. Don haka, amsar ita ce Yaƙin Duniya na II. <eng> The relevant information to answer the above question is: Bruno is a 9-year-old boy growing up during World War II in Berlin. So, the answer is World War II. 