Neither Mattis nor Song would address possible deployments of USA military equipment.
It denounced the joint exercises in traditionally robust fashion.
Lt. Gen. David H. Berger, the commander of U.S. Marine Corps Forces Pacific, said in a statement that the F-35 contributes to the overall security and stability of the region and embodies a commitment to U.S. allies.
President Donald Trump, who has warned that the USA military is "locked and loaded" in case of North Korean provocation, reacted angrily to the latest missile test, declaring on Twitter that "talking is not the answer" to resolving the crisis over North Korea's weapons programs.
But hours later, Trump's defense chief told reporters at the Pentagon the U.S.is "never out of diplomatic solutions". -South Korea military exercises focused mainly on computer simulations.
NWS: Clear, cooler Labor Day weekend
Cooler air will filter in behind the front, and we may struggle to make it out of the 70s on Wednesday afternoon. By Friday , temperatures will rise into the upper 80s with a chance for storms in northwestern Oklahoma.
United States defence secretary Jim Mattis has refuted claims that he disagrees with President Donald Trump on the best strategy to handle tensions with North Korea.
North Korea launched a ballistic missile over northern Japan early Tuesday, warning afterward that it was a first step in having a "Pacific operation". "We will work closely with other countries to intensify pressure on North Korea".
"The North's intention was to push the boundaries of its military presence farther from the Korean Peninsula and Japan and into the wider Pacific, and they practically drew the line at Guam with their missile threat", he said.
The Security Council demanded Pyongyang to abandon all nuclear weapons and existing nuclear programs "in a complete, verifiable and irreversible manner" and immediately cease related activities. But Kim put the threat on hold later, saying he would watch the US behavior a "little more". Experts say Kim wants a real nuclear deterrent against the United States to ensure the survival of his government and likely believes that it will strengthen his negotiating position when North Korea returns to talks.
Jean-Yves Le Drian called the situation following a string of missile tests by Pyongyang "extremely serious" and urged the reclusive state to turn to dialogue to ease spiralling tensions. But the threat and the subsequent launch Tuesday may have won North Korea space to stage more weapons tests because anything less than targeting Guam would draw a sigh of relief from the United States.
Russia and China have created a roadmap for a settlement on the Korean Peninsula that is designed to promote the gradual easing of tensions and the creation of a mechanism for lasting peace and security, the Russian leader added.