U.S. President Donald Trump agreed with South Korean President Moon Jae-in to revise the two countries' treaty capping the development of the South's ballistic missiles as Seoul has hoped to, Moon's office said on Saturday.
It came as US and South Korean forces were nearing the end of the 10-day annual Ulchi Freedom Guardian joint exercises, which the North regards as a rehearsal for invasion.
Trump also gave "conceptual" approval to the purchase by the South of billions of dollars of US military hardware, the White House said.
But despite Pyongyang's propaganda in favour of the ICBM Hwasong-14, the weapon of choice has recently been the intermediate range ballistic missile (IRBM) Hwasong-12.
In a phone call, Trump gave "conceptual approval" to a multi-billion dollar equipment sale to Seoul, the White House said in a statement, The Hill reported.
The South wants the maximum warhead weight doubled to one tonne, and the Pentagon has said it was "actively" considering the revision.
Mrs May and the Japanese Emperor spoke for around 20 minutes during the visit on the final day of her three-day trip to Japan
The book itself discusses the effect of the market on people's lives in North Korea, such as South Korean TV dramas being spread on the black market.
The North also threatened South Korean news organizations in 2012, when its military warned that its troops had aimed artillery at the specific coordinates of some Seoul-based newspapers and TV stations over their critical reports on children's festivals that had been taking place in Pyongyang.
Calls are also mounting in South Korea for Seoul to build nuclear weapons of its own to defend itself as nuclear-armed North Korea's missile stand-off with the USA escalates.
South Korea, which hosts 28,500 U.S. troops, is banned from building its own nuclear weapons under a 1974 atomic energy deal it signed with Washington, which was revised in 2012.
The U.S. military in South Korea hands over police authority to the South Korean government. At the earlier meeting, held on July 7 on the sidelines of the Group of 20 Summit in Germany, the two had agreed on the need to bring North Korea back to denuclearization talks, with Putin saying Moscow does not recognize Pyongyang as a nuclear state.
Hyun said that Trump and Moon also underlined the importance of pressurizing Pyongyang to come to the dialogue table.
Germany to veto EU-Turkey Customs Union review
Germany is home to three million Turks, about half of whom can vote in the German federal elections on 24 September. Twelve German citizens are now in Turkish detention on political charges, four of them holding dual citizenship.