Almost 34 years ago, on this day — February 15th, 1989 — the last Soviet soldier left Afghanistan. As we mark this anniversary, I take a moment to reflect on the lessons learned from the Soviet invasion of Afghanistan, which may provide insights into the ongoing conflict in Ukraine. — In 1979, when the Soviet Union invaded Afghanistan with about 115,000 soldiers, my father was in his twenties and joined the Jihad against the godless communists. One day, along with a group of the newly formed mujahideen, he went to a couple of villages down the valley to fight the…