When Russian armored columns breached the Ukrainian border four years ago in February 2022, the world initially misdiagnosed the crisis. It was seen as a relic of 20th century territorial dispute or a localized European tragedy. Yet for radical actors in the Middle East, most notably Yahya Sinwar and the Hamas leadership, the invasion signaled a tectonic shift. It was the definitive collapse of the global order that had stood since the fall of the Berlin Wall.
The link between Kyiv and the October 7 massacre is not one of direct tactical instruction, but of strategic environment. While Hamas’s planning for a mass-scale assault evolved over many years, the war in Ukraine provided the psychological and systemic oxygen that transformed a suicidal gamble into a perceived historic opportunity.
The erosion of Western strategic bandwidth
The first casualty of the war in Ukraine was the myth of American omnipresence. For decades, Middle Eastern stability rested on the assumption that Washington could manage multiple global theaters simultaneously. Russia’s invasion shattered this premise.
As the United States became anchored to a prolonged war of attrition, managing strained munitions pipelines and preventing nuclear escalation, the perception of divided attention took root. For Hamas, this was a green light. In a world of fragmented focus, a regional catastrophe in the Middle East was no longer guaranteed to meet the full weight of Western intervention. It became just one more fire in a world already ablaze.
A new lexicon of force: Defying the rules-based order
Russia proved that in the 21st century, sovereign borders could be redrawn through kinetic force while evading total isolation. Though sanctions were heavy, they were not terminal. For ideological regimes, the takeaway was existential: if a global power can gamble on total instability to reshape reality, then extreme violence is once again a legitimate instrument of policy.
This shift directly emboldened the Iranian axis. The war transformed Tehran from a regional pariah into a critical strategic partner for the Kremlin. This alliance of convenience granted Iran a newfound sense of immunity. When a sanctioned state becomes indispensable to a superpower, its proxies sense an expansion of their own operational boundaries.
The Ukrainian laboratory: Decapitating technological superiority
Beyond high-level diplomacy, the battlefields of Ukraine served as a live-fire laboratory for asymmetric warfare. Millions of hours of combat footage demonstrated a terrifying new reality: inexpensive, off-the-shelf technology can blind and paralyze a hi-tech military.
The systematic use of commercial drones to neutralize multi-million dollar surveillance systems became a blueprint.
The core lesson was conceptual: qualitative military superiority is inherently brittle if it can be decapitated in the opening seconds. The October 7 assault was a direct application of this principle, using low-tech precision to induce systemic shock and blinding the IDF’s sensors before the first fence was even breached.
The twilight of deterrence
The post 1991 era was built on the assumption that large-scale wars were unprofitable and therefore obsolete. Russia’s invasion ended that consensus. When the boundaries of the possible are redrawn in one hemisphere, the shockwaves are felt in the other.
Sinwar acted in a world where global powers were actively challenging maps, where alliances were in flux, and where international focus was a scarce commodity. In this chaotic ecosystem, an attack once dismissed as unthinkable was reassessed as a tactical necessity.
The path from Kyiv to Gaza is not a straight line, but a series of butterfly wings that destabilized a fragile global system until it reached its breaking point.
Four years into the conflict in Europe, it is clear that the tremors did not stop at the border. October 7 was not just a local tragedy; it was one of the most violent symptoms of a world where the old rules have ceased to exist.
The writer is a major (res.) in IDF Intelligence, a tech entrepreneur and investor and creator and host of the podcast HaYanshuf (The Owl).