 
 <translate> 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. <ibo> Ihe ọmụma dị mkpa iji zaa ajụjụ ahụ dị n'elu bụ: Bruno bụ nwata nwoke dị afọ 9 nke na-etolite na Berlin n'oge Agha Ụwa nke Abụọ. Ya mere, azịza ya bụ Agha Ụwa nke Abụọ. 