Why does it mske the most sense for Germany and austria Hungary to be allies?

Germany and Austria-Hungary made logical allies due to their shared cultural and linguistic ties, with both nations having a significant German-speaking population. Additionally, their strategic interests aligned, particularly in countering the influence of Russia and maintaining stability in Central and Eastern Europe. Militarily and economically, an alliance bolstered their positions against common threats, enhancing their power and influence in the region. This partnership was solidified through treaties that aimed to support each other in times of conflict.