AP Photo

One of the most important events in Danny Danon’s life happened in 1969, two years before he was born.

That was the year Joseph Danon, a 29-year-old army reservist, was pursuing a Palestinian guerrilla cell in the Jordan Valley. When battle was joined, one of the Palestinians threw a grenade and Danon was hit by shrapnel. He emerged from a coma after several months, having suffered a serious head wound. He was rendered permanently deaf.

Many of Danny Danon’s childhood memories are of serving as his father’s interpreter at banks and government offices and of going on hikes across the country and then reporting back to their home in Ramat Gan, describing the routes and the landscapes to his father, once an avid hiker...