"(Such announcements) are open provocations against the negotiating party and a dangerous move that runs counter to the current mood for reconciliation and unity that the two Koreas had not witnessed in a long time," said a commentary carried by the North's ruling party newspaper, Rodong Sinmun.

The commentary also said that "Negotiations and maneuvers for a war cannot stand together," and "Pursuing military options never works with us."

Relations on the Korean Peninsula have thawed after North Korean leader Kim Jong-un called for rapprochement with Seoul in his New Year's message.

A flurry of diplomatic moves has since been made, including the North's participation in the PyeongChang Winter Olympic Games hosted by the South in February.

The two Koreas have agreed to hold a summit between their leaders -- President Moon Jae-in and the North's Kim -- in late April at the truce village of Panmunjom, in what would be the third inter-Korean summit, following similar meetings in 2000 and 2007.

Meanwhile, the South Korean armed forces, is reportedly expected to keep the F-35A ceremony low key amid the mood of detente on the peninsula.  (Yonhap)