Why was Mdisho enthusiastic about the war?

Mdisho's enthusiasm about the war can be attributed to his fighting heritage. Coming from a background where valor and bravery in conflict were likely celebrated and passed down through generations, he felt a connection to this legacy. This sense of duty and pride in his family's past could have deeply motivated him to participate in the war.

The other options, while plausible, do not encapsulate the foundational reason behind his enthusiasm as effectively as the aspect of heritage. Traveling abroad or seeking adventure are motivations that might be temporary or superficial, whereas a fighting heritage implies a deeper cultural and familial significance. Defending his village could also be an essential motivator, but without the personal connection to a culture of fighting, it may not capture the full extent of Mdisho's enthusiasm.