The USS Stethem destroyer came to South Korea equipped with the high-tech Aegis Combat System to be used in this month's Asia-Pacific military drills.
If Moon Jae-in, front-runner for the May 9 election, reverses policy on the deployment of the THAAD system, it will place him at odds with the United States, South Korea's biggest ally.
The ousted leader’s “first dogs” were popular on her social media but did not follow her to her new home.
The Constitutional Court dismissed Park from office on Friday when it upheld a parliamentary impeachment vote over an influence-peddling scandal.
The U.S. started deploying its advanced anti-missile defense system in South Korea on Tuesday in response to North Korea's ballistic missile and nuclear tests.
Park becomes South Korea's first democratically elected leader to be forced from office.
If the court upholds parliament's Dec. 9 vote to impeach Park over an influence-peddling scandal, she will be the country's first democratically elected leader to be forced from power.
The special prosecutor's office probe accused the impeached Park of wrongdoing but cannot bring charges unless she is removed from office.
The war games are an annual military exercise carried out by the U.S. and South Korea.
China objects to the deployment in South Korea of the THAAD, as the radar is capable of penetrating Chinese territory.
North Korea has sought to prevent Malaysia from conducting an autopsy, insisting the body be handed over directly.
The head of the multinational was arrested for his alleged role in South Korea’s corruption scandal.
A South Korean official also said they believed he had been murdered, without giving further details.
Kim Jong Un had warned that the nation was close to test-launching a ballistic missile.
The U.S. president had previously suggested he could withdraw U.S. troops stationed in South Korea.
A South Korean judge will decide whether Lee should be arrested over his alleged role in a corruption scandal.