What were two reasons why the us was largely uninvolved in foreign events during much of its history

The two reasons why the us was largely uninvolved in foreign events during much of its history is that for much of its history the U.S practiced isolationism, Whereby it was reluctance to become involved in European alliances & wars. One of the primary reasons for American indifference and inactivism was the preoccupation of Americans with domestic crises

Ithink its trade and commernce let me know if im wrong