The L-Shaped Formation: Tactics for Roadblocks, Defense, and Attack in Grid-Down Scenarios

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In the chaotic aftermath of a major grid-down event—whether triggered by a geomagnetic storm, EMP, cyber attack, or widespread infrastructure collapse—roadblocks quickly become one of the most visible signs that civil order has broken down. These barriers are rarely the exclusive domain of bandits or warlords; far more often, they are erected by ordinary people—neighbors, families, local leaders (sheriffs, veterans, business owners, or armed residents)—desperately safeguarding their families, communities, and dwindling resources from outsiders. The L-shaped formation is a proven tactical tool that enhances roadblocks, turning simple barriers into highly effective defensive positions or deadly ambushes. This guide explores its applications in roadblocks, defensive setups, and attack scenarios, with a focus on realistic grid-down dynamics. Why Roadblocks Form in Grid-Down Environments Resource scarcity — Food, fuel, medicine, and ammunition turn finite. Communities block access to protect local supplies. Fear of outsiders — Rumors of disease, looting, or refugee waves spread rapidly, fostering an "us vs. them" mentality. Control of movement — Limiting entry reduces risks of theft, violence, or disease introduction. Power vacuum — Without functioning police or military, local groups fill the void to maintain order. Roadblocks commonly appear at natural choke points: narrow bridges, mountain passes, rural...