They can tray with any nation as long that its not war materials.
They may trade with other countries as long as it's not war material or war plans.
They are called neutral nations. These countries were neutral during World War 2: Spain, Norway, Portugal, Ireland, and Switzerland.
There were some countries that were neutral during World War 2 that invaded Germany. These countries included the United States and Sweden.
The bordering countries of Laos & Cambodia were neutral.
During World War I, the notable neutral nations were Spain, Sweden, Norway, Switzerland and the Netherlands.
Switzerland and Spain, Denmark and Norway were neutral but Hitler brought them into the war
Many countries were neutral during World War I, like Switzerland.
During World War I, Switzerland, Spain, and the Scandinavian nations remained totally neutral.
Yes. A number of European countries are neutral and were neutral during conflicts such as World War II. Ireland, Sweden and Switzerland are three such countries, and there are others.
Switzerland and Sweden.
Laos and Cambodia.
Countries in Europe that were Neutral in World War I:NorwaySwedenDenmarkNetherlandsSwitzerlandSpain