The Hertford East branch line, and Lea Valley lines, are both in which country?
Lea Valley lines The Lea Valley lines are two commuter lines and two branches in North East London, so named because they run along the Lower Lea Valley of the River Lea. They were part of the Great Eastern Railway, now part of the "Anglia Route" of Network Rail.
Rugby–Birmingham–Stafford line The Rugby–Birmingham–Stafford line (also known as the Birmingham loop) is a railway line in the West Midlands of England. It is a loop off the West Coast Main Line (WCML) between Rugby and Stafford via the West Midlands cities of Coventry, Birmingham and Wolverhampton. The direct route between Rugby and Stafford is the Trent Valley Line.