The National Shelter Network (codename System 1, originally Project 433) is Vekllei’s standardised Civil Defence infrastructure and covert federal system, comprising hardened shelters with 90-day life support distributed across all 83 constituent republics. Civil defence in Vekllei originated in the late 20th century, when the country’s Cold War-era shelter programs (then improvised and inconsistent) were among the first public safety measures taken by the early Commonwealth government. The current network consolidated these earlier efforts under a unified federal system during the 2040s, standardising design and expanding coverage to match the Commonwealth’s growing federal union.
Unlike continental nations that can evacuate populations inland, Vekllei’s island republics require in-place shelter with capacity to sustain populations through extended crisis. Each republic maintains shelter capacity for 110% of its resident population, with facilities distributed so that no citizen lives more than 15 minutes from a designated shelter. Urban areas feature large communal shelters integrated into metro systems and public buildings; rural regions rely on smaller distributed facilities and hardened basements. Standard shelter modules provide sealed environments with air filtration, water purification, food storage, medical facilities and sanitation for 90-day occupancy, usually powered by diesel generators. The largest shelters in metropolitan areas may have their own reactors.
The network’s most distinctive feature is its underground rail connections linking major shelter complexes within and between republics. These tunnels, built primarily during the 2050s expansion, allow people to travel between facilities during crises without surface exposure, and integrate with existing metro infrastructure in urban areas. The system could potentially move approximately 2 million people per hour across 8,000 kilometres of tunnel.
During peacetime, shelters serve as storage facilities, evacuation points and civil defence training sites. The Civil Defence Service conducts annual drills in November. The shelter sites also prove useful during the natural disasters common across Vekllei’s volcanic and hurricane-prone islands, and get put to use in recovery after tsunamis and storms.