Complex sentence: We use diplomatic representatives to deal with a host of problems that occur within our international system ambassadors now normally live overseas or within the country in which it is assigned to for long periods of time so that they are acquainted with the culture and local people.
Split into simpler sentences: We use diplomatic representatives to deal with a host of problems that occur within our international system. Ambassadors now normally live overseas or within the country in which it is assigned to for long periods of time so that they are acquainted with the culture and local people.