Militants attacks on the positions of Ukrainian units again caused the disruption of the disengagement process near the populated area of Stanytsia Luhanska, Viktor Muzhenko, the head of the Ukrainian General Staff, said.

During a meeting with strategic level advisers from the U.S., the UK, Canada and Lithuania he noted that regular ceasefire breaches make it impossible to "begin the practical stage of the disengagement in the Stanytsia Luhanska area," the Defense Ministry said on Wednesday.

The head of the General Staff informed his advisers about the situation in the area of the anti-terrorist operation and answered a question about the prospects of implementation of the agreements on the withdrawal of troops in the previously determined areas.

U.S. adviser Gen. John Abizaid, for his part, said the main purpose of the consultations is to increase the combat readiness of Ukrainian troops.

Foreign advisers gave high marks to the efforts made by the Ukrainian military leadership to boost the effectiveness of troops management and increase the operational capabilities of military units.