trade is the normality, yet countries plan for war, but do they plan for trade

countries almost always trade with each other, both in peace and war, 

in peace countries setimes trade with their enemies, 

in wartime, countries trade with their allies among others 

in wartime countries might even trade with their enemies, even if it's just some basic food crops, like potatoes, rice or wheat, but there is usually some trade 

countries plan for wars 

countries tries to trade 

probably a lot of businessmen see opportunities where different countries could trade with each other 

which would lead to economic development, 

which in turn would lead to more business for businessmen 

and more trade for countries 

but everything is so sensitive when countries are competitors and/or enemies 

but trade is always possible even when strategic considerations are weighed in