It wasn't necessarily justified in everybody's eyes. But in his own eyes, and obviously the eyes of congress, he justified it as saying that he was not holding people hostage, he was holding them to see if they were or were not communists.
The Monroe Doctrine was established long before Franklin Roosevelt, or even Theodore Roosevelt, was born. Both of them used it to justify some of their actions in Latin America. In particular, FDR used it to justify the portions of Lend-Lase that resulted in the US leasing naval facilities in the Caribbean.
The court justified the military orders that sent people of Japanese ancestry to internment camps during World War II primarily based on national security concerns. In the landmark case Korematsu v. United States (1944), the Supreme Court upheld the government's actions by arguing that the need to protect against espionage and sabotage outweighed individual rights during wartime. The decision reflected the prevailing fear and prejudice against Japanese Americans at the time, despite later acknowledgment of the orders as unjust and racially discriminatory.
only us can help Central and south America
Justify America's neutrality His audience held many different opinions about the war.
Economic interests in the area
The U.S. government justified Japanese internment during World War II primarily by citing national security concerns. Officials argued that individuals of Japanese descent, particularly on the West Coast, posed a potential risk of espionage or sabotage following the attack on Pearl Harbor. This rationale led to the forced relocation and incarceration of around 120,000 Japanese Americans, despite a lack of concrete evidence supporting claims of disloyalty. The internment is now widely recognized as a violation of civil rights.
They felt "entitled" to the islands of the Pacific. They were doing it to increase the land that they controlled.
Such action was needed to defend American interests.
Roosevelt Corollary
roosevelt corollary
Badly. Some of the military leaders in California were .... OK, racists, and decided that Japanese might be disloyal. After all, they might send signals to Japanese airplanes or saboteurs, right? So, many Japanese, and Americans of Japanese ancestry, were interned in rather unpleasant conditions away from the coast for the duration of the war. It's astonishing, therefore, that when the Army asked for Japanese to volunteer for service, that so many did, and served so heroically. The 442nd Regiment, composed almost entirely of Japanese-Americans, fought in Europe and were the most highly decorated unit in American history. As an interesting side-note, Japanese in Hawaii were not interned, even though Hawaii was far more densely populated with Japanese, and there were virtually no acts of sabotage or espionage among Japanese or Japanese-Americans.
Japanese emperors justified their divinity through the belief in their descent from the Shinto sun goddess Amaterasu, which established a sacred lineage. This divine ancestry was reinforced by the imperial family's role as spiritual leaders, performing rituals that connected the nation to the gods. Additionally, the concept of kami (spiritual beings) in Shintoism further supported the idea that the emperor was a living deity, embodying the nation's spiritual essence. This belief system fostered loyalty and unity among the Japanese people throughout history.