93-year-old Esther Cohen escaped to mandate Palestine in 1938. She and canine scientist Rudolphina Menzel established Haganah’s canine unit, the forerunner of the modern-day IDF Oketz Unit. The dogs were trained for guard duty, search & rescue, messengers and spying.

https://www.jns.org/a-refugee-from-the-nazis-she-helped-create-the-haganah-and-idf-canine-units/