Why is a federal state with many land borders a better comparison with the UK than a unitary island state?
Germany
Land area 357,000 km2
Population 84 Million
Nearest country: Contiguous
New Zealand
Land area 268,000 km2
Population 4.8Million
Nearest Land mass 1,000 miles
Peak air passenger arrivals 24,000 per day in Januay
UK Land area 242,000 km2
Population 68 Million
Nearest country 20 miles
Heathrow daily average passengers 200,000 plus