The presented work is an academic work of labour and untrammeled fun which zeroes in upon a perpetual theme in International Relations which amounts to the definition and the legality or the illegality of the American interventions in nations since the US Spanish war in 1890 till Syria, one of the biggest humanitarian disasters mankind has ever seen. The work refers to the International law dictum of just Cause and Preemption which has become a cornerstone of a strategy for the advancement of American national interest along with the homeland security aspect in the United States of America. The Book is the first of its kind from an Indian author premised upon a stout defense of the American war efforts and humanitarian strivings to sustain world security.