If an aircraft was in the sky, they went up to screen it (follow it/shadow it).
If a vessel came close by, they went out to screen it.
If an enemy missile site was installed withing range of them; spy (recon) flights were conducted.
If an army conducted maneuvers on their border; they countered with a maneuver on the border.
If the enemy drove their tanks to the border gates; they drove their tanks to the gate (and they'd stare at each other thru their main gun sights); each tank waiting for the order to open fire.
Imperialism
After world war 2, the United Nations was formed in attempt to maintain world peace, and the United Nations provides peace keepers in areas of conflict.
It was an attempt to keep trade open in China open to all nations.
The League of Nations.
Columbia does not have specific "enemies" as a country. Its foreign policy is generally aimed at promoting peace and cooperation with other nations.
Allies: UK, COMMONWEALTH Nations, North America, Caribbean countries, Cuba, Venezuela. Japan Enemies: Guatemala
because they are stupid
Citizens protect themselves with police departments. Nations protect themselves with a military.
There are many nations that govern themselves.
first nations
Western nations are Kenya's enemies. They are envious of ho fast Kenya's economy is growing. They will do anything to stop it and bring the country down.
japan and Germany