Answer:
Indeed, both domestic policy and foreign policy are two sides of the same coin, which is none other than the exercise of the policy of a sovereign nation, and the effect that policy has on the individuals of that nation, in economic terms. , of individual and social freedoms in general.
That is to say that the political measures of a country, both internal (creation of taxes, for example) and external (initiation of wars or signing of international treaties, among others) have the consequence of affecting the lives of citizens, in a way which can be positive or negative depending on how it is analyzed.