PYONGYANG gave further expression to the new spirit of detente with Washington today, cancelling its annual anti-US imperialism rally to mark the anniversary of the Korean War.

The rally usually launches a month of Korean War-focused events designed to strengthen national unity, culminating on July 27 with a national holiday to celebrate “victory in the fatherland liberation war.”

North Korea has noticeably toned down its anti-Washington rhetoric over recent months to create a more conciliatory atmosphere for the June 12 summit that took place between US President Donald Trump and his North Korean counterpart Kim Jong Un in Singapore.

While softening its criticism of the current US administration, Pyongyang has stepped up its attacks on “capitalist values” in general.

South Korean Prime Minister Lee Nak Yon revealed today that the two Korean states are discussing the possible relocation of North Korea’s long-range artillery systems away from the border.

Mr Lee said that “moving the long-range artillery to the rear is under discussion” as he explained what types of goodwill steps between the sides have been taken in recent months.

Seoul’s Defence Ministry, which has previously denied such reports, said it had no immediate comment on Mr Lee’s speech.

A 2016 South Korean defence white paper described the North’s long-range artillery as one of the country’s biggest threats, along with its nuclear and missile programmes.

The South Korean capital Seoul has a population of 10 million and is less than 30 miles from the border.