North
In the shortest direction, to go from France (in Europe) to China (in Asia), you would go east.
The direction you would need to go would be North East.
An Allied tank would travel north to go from North Korea into Communist China.
An Allied tank would travel north to go from North Korea into Communist China.
East
An Allied tank would travel north to go from North Korea into Communist China.
Westerly
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To travel from North Korea into Communist China, an allied tank would generally head southwest. North Korea shares a border with China to the north and northwest, so moving in that direction would lead the tank across the Yalu River or the Tumen River, which mark the boundary between the two nations.
You would travel in a southwesterly direction to go to Melbourne from Canberra.
If you are in Washington and would like to get to Indiana, you will have to go towards the west direction.
The most logical direction would be south.