The ball is in North Korea's court to resume the six party talks.
That is according to US officials on Thursday.
A senior US official, speaking at a US-Australia defense ministers meeting in San Francisco Thursday,said that Washington was not waiting for pre-conditions but rather pre-steps to restart dialogue.
The official also said that the US clearly has laid out three issues for the north to address including nuclear weapons missiles and relations with the South referring to North Korean first Vice-Foreign Minister Kim Kye Gwan's trip to New York in July.
The US, however, says that it is still waiting for a clear signal from the North.
Meanwhile, the United States has expressed concern about closer military ties between North Korea and Russia.
US State Department spokesman Victoria Nuland told reporters Thursday that Washington had only learned of a plan between North Korea and Russia to conduct joint military exercises next year through media reports.
Nuland called on Moscow to clearly disclose details of the planned drills.
She added that any engagement with North Korea should be conducted in a way that does not detract from the international community's clear message of concern about the North's weapons programs, and the necessity for Pyeongyang to do what is necessary to return to the six-party nuclear talks.
Kim Nari, Arirang News.