Several things can lead to military intervention. For example, when a country is attacked, one big option is to respond back with the military. When leaders of other countries are not treating their own citizens correctly, this can lead to military intervention from other countries.
Ho Chi Minh
where ever military force is used without consent of the affected is termed as military intervention
Causes of military intervention in politics
Fear of Communist expansion
US military intervention has been a success in some situations and a failure in others. Some of the successes include the intervention during the First World War, while a failure was the intervention in Somalia.
Currently, there are no reported military sales of the CheyTac Intervention.
I do not think that Harding or Coolidge led any military actions while they were president. There may have been others.
military intervention in politics
There is no difference both words mean the same thing.
In Vienna in October there was an insurrection in protest at military intervention against Hungary.
Soviet intervention in African countries
Bad leadership and corruption