Morinosuke Kajima (1965), Glenn Hook (1995), Frederic S. Pearson (2003), and Alexandre Ratsuo Uehara (2005) study the subject of Japanese foreign policy in different periods of contemporary history. Meanwhile, Aruga (1989) points out that the Yoshida Shigueru administration (1948–1954) delineated the components of post-war Japanese foreign policy in the first half of the 1950s. Taking advantage of the situation created by the war on the Korean peninsula, the US government persuaded the Yoshida government of the importance of rebuilding his country’s military capacity; still, it was not easy to set aside the precepts of the 1948 Constitution, drafted under the supervision of the occupation authorities, which stipulated the renouncement of war. The solution was the creation of the Self-Defense Forces in 1957.