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And it's opening up possibilities for new maritime trade routes, drastically reducing travel time between Asia and Europe.

International flights are now being forced to take longer, costlier detours, increasing both travel time and fuel expenses.

Campaigners say the distance and travel time, as well as poor transport infrastructure, put lives at risk.

A record-breaking tunnel is being built under the Baltic Sea between Denmark and Germany, which will slash travel times and improve Scandinavia's links with the rest of Europe.

New York, which launched the program just last month, is vowing to fight Trump, arguing the program is helping minimise traffic and travel times.