High Quality Content by WIKIPEDIA articles! Route Trident (known locally as the New or Big Road) was built by the British Army`s Royal Engineers in Helmand Province, Afghanistan. The construction of the road was codenamed Operation Lar Jarowel by the Ministry of Defence. Route Trident replaced an older road that was vulnerable to attack by insurgents on convoys supplying three patrol bases established in the Gholam Dastagir Kalay area as part of Operation Panther`s Claw. The attacks resulted in the deaths of two British servicemen and led to the cancellation of the convoys, forcing the bases to be resupplied by air.