Terminal High Altitude Area Defense (THAAD) interceptors arrive at Osan Air Base in Pyeongtaek, South Korea, in this handout picture provided by the United States Forces Korea (USFK) and released by Yonhap on March 7, 2017.
However, this is the first time that USA forces have made the news of the drone movement public, according to USFK spokesman Christopher Bush.
"In case of a war on the Korean Peninsula, the unmanned aircraft could infiltrate into the skies of North Korea and make a precision strike on the war command and other major military facilities", the official said.
"In response, North Korea will surely conduct a nuclear attack against South Korea and the U.S.by using all of its various methods of attack such as long-range artillery". Subsequent remarks clearly show that Trump believes China could singlehandedly defuse the present crisis if it wanted to. "On Monday, the White House denounced the missile tests and warned of 'very dire consequences'".
Unable to force the more powerful U.S.to back down, China has concentrated its ire on South Korea.
The Chinese government is acutely concerned at the prospect of war on its doorstep involving its ally, North Korea.
Chairman Jung also criticized China, saying, "The Chinese act against the worldwide order not only collapses the amicable relationship accumulated between Korea and China but also deserves to be denounced by the global society".
China's foreign minister said on Wednesday that North Korea could curb its nuclear weapons program if the U.S. agreed to stop conducting military drills with South Korea - something the USA rejected.
"With a policy review on North Korea underway in Washington, the visit will give us a good opportunity to share our diverse experiences on the North that we have accumulated for decades and provide our input", said the government official, who spoke on grounds of anonymity.
"As much as our position pertaining to national security should remain unwavering regardless of the domestic political situation, we will continue to maintain steady preparedness in close cooperation with our diplomatic and security agencies with regards to North Korea", government officials in Seoul said. China has taken unusually strong steps to discourage Kim's nuclear ambitions but it may well have hit the limit of its influence. But already, a number of sectors in the Korean economy, including tourism, have been hit by measures from China seen as retaliation for Seoul's decision to deploy the US missile defense system.
A pre-emptive USA attack on North Korea would be an act of war with incalculable consequences.
China has interests in the Korean Peninsula divided between the two Koreas.
Complicating matters further is the corruption scandal that led to South Korean President Park Geun-hye's ouster on Friday.
"I believe that they will sustain this pressures during the next few months, in the hope the new leader of South Korea can be convinced to reverse the decision", said Dennis Wilder, an adviser to former President George W. Bush and now a senior fellow at Georgetown University's U.S.
Relations with the North are a key consideration for any South Korean government, and over the years, different governments have tried different policies in their attempts to coexist with a volatile and risky regime in Pyongyang.
The South Korean public is divided on THAAD, with many feeling the system isn't worth antagonizing China, but it's unclear if the next president would actually halt the project. Their whipping up of nationalism acts as a barrier to the development of unity among workers in Asia and the United States in opposition to imperialist war.