Introduction
At nineteen, John Spencer lost part of his ear in a street fight and, as a direct consequence, was pulled from the Ranger Regiment that had become his entire sense of self. The injury healed in weeks. The identity crisis that followed took months, and it taught him a lesson he has spent the rest of his career, and his parenting, trying to pass on: build your life around more than one thing you cannot survive losing. Spencer went on to serve over 25 years, become one of the world's leading experts on urban warfare, write for outlets from CNN to the New York Times, and author a book on connection and leadership in modern war. But the throughline in his story is not rank or reputation. It is what happens to a person's sense of self when the role they built it on disappears, and what it takes to rebuild something sturdier in its place.
Joining the military to find an identity, not just a job
Spencer describes a stereotypical route into service: a low-income upbringing, an absent father, a mother raising three children on three jobs, and few visible options after high school. He signed his contract at sixteen and shipped out at seventeen. Looking back, he says he joined not chasing adventure but searching for identity, meaning and community, things he did not have language for at the time. The military gave him all three, and gave him a structure, ranger, sergeant, officer, commander, that he could build a self around.
When fatherhood became the primary identity
Spencer met his wife while both were serving in Iraq, and they remained a dual-military couple for years. He is direct that having children changed which identity took priority. Having grown up without a father himself, he says fatherhood became not just one of his roles but his primary one, more central than being a soldier. That reordering eventually led to a defining decision: the couple could not both keep serving and parent the way they wanted to, so he retired while his wife's career, which was advancing faster, became the priority.
A cancer diagnosis and a deployment that tested the plan
The decision to retire was not simple, even once made. Spencer had planned to leave the military at the twenty-year mark but stayed five years longer. During that stretch his wife was diagnosed with cancer and underwent a double mastectomy. He describes it as one of the moments life forces a person to confront what actually matters most, rather than what a career trajectory suggests should matter. She recovered and returned to service. The same month he retired, she deployed to a warzone, and he became a stay-at-home father to their three young children.
Redefining strength while solo parenting
Spencer is candid that this period was harder than anything his military training prepared him for. Trained in stoic, compartmentalised toughness as an infantryman, he found himself telling his nine-year-old son to "be strong" during a difficult moment and immediately questioning whether that was the right thing to say to a child. Modern connectivity meant his children spoke to their deployed mother by video call every night, which meant he could not simply take charge as the household's new authority. He had to actively protect her from the daily chaos of home life while she wanted to stay fully informed regardless, a tension he says tested their teamwork and required real empathy on both sides.
What shared hardship actually builds
Drawing on both military and family life, Spencer argues that constant digital connection is a double-edged sword. It let his deployed unit stay in touch with loved ones in ways earlier generations of soldiers could not, which helped morale, but it also meant soldiers were managing home-front crises in real time while trying to function in combat. He recounts a mission where a child was killed in front of his unit, and how the group's instinct afterwards was to individually contact family rather than process the event together. He identifies the leader's job in moments like that as recognising when shared, undistracted time, eating together, training together, sitting with hard news together, builds cohesion in a way that time spent separately never will.
The setback that taught him not to over-identify with one role
The story Spencer returns to as his clearest lesson happened at nineteen: a street fight that cost him part of his ear and, because he could no longer wear a helmet during recovery, his place in the Ranger Regiment. He describes the physical injury as almost incidental next to the psychological one. Having built his entire sense of self around that unit, being removed from it triggered a genuine depressive spiral. It took months, not days, to rebuild an identity around being a soldier more broadly rather than a member of one elite group. He now teaches his own children the same lesson deliberately: don't let one identity become so load-bearing that losing it breaks you.
Quitting versus changing direction
Spencer holds "quitting is not an option" as a defining family value, but distinguishes it clearly from staying in a role or situation that no longer serves you. Leaving the military to prioritise fatherhood was not, in his framing, quitting. It was changing direction once he had clarified what mattered most. The distinction matters to him: forward movement, even without certainty about what comes next, is different from giving up.
Learning as a way of living, not a phase
Spencer describes an "element of learning" instilled in him by military culture that has outlasted his uniform: if you are not growing, you are getting weaker, professionally and personally. That value shows up in unlikely places, including teaching himself to write publishable articles and, later, an entire book, by watching tutorials and studying the craft from scratch despite years of published journalism. It also produced one of his proudest moments: writing a free, unaffiliated survival guide for Ukrainian civilians at the start of the war, drawing purely on decades of urban warfare research, which was printed and distributed in the hundreds of thousands of copies.
What leadership actually requires
Asked directly for his definition of leadership, Spencer borrows from military doctrine but adds his own emphasis: leadership is giving people the mission, the reason behind it, and the inspiration to act on it. The first two, he says, are comparatively easy. Inspiration is the hard part, whether the audience is a platoon or, in his words, his own kids at the dinner table being told to eat their vegetables. He argues leadership fails when it becomes pure instruction without communicated reasoning or visible role-modelling, because people, soldiers and children alike, tune out anything they cannot see demonstrated.
