The Democratic People's Republic of Korea (DPRK) said on Tuesday the country is fully ready for dialogue and war, and will continue bolstering up its nuclear deterrent as long as the U.S. military threats and provocations go on, the official news agency KCNA reported.

A spokesman for the Foreign Ministry made the remarks after the U.S. and South Korea kicked off military exercises codenamed "Key Resolve/Foal Eagle."

It is an act of chilling the efforts about denuclearization process of the peninsula, the spokesman said.

There is no change in the U.S. administration's hostile policy towards the DPRK, he said, adding that without a peace treaty it is impossible to denuclearize unless this confrontation is put to an end.

He stressed the DPRK's proposal for concluding a peace treaty has been proved to be important once again.

The United States and South Korea started Monday their annual joint military exercises.