Germany has welcomed Russian President Vladimir Putin's agreement to send UN peacekeepers to eastern Ukraine.

German Foreign Minister Sigmar Gabriel, speaking in Berlin, said he found Putin's announcement “surprising” but said he was “very pleased to see this first signal” that Putin “wants to further discuss a demand which Russia had rejected in the past, namely, the use of blue helmets, UN soldiers, a blue helmet mission in eastern Ukraine to implement the cease-fire,” according to The Washington Post.

“More importantly, this offer of a UN mission in eastern Ukraine shows that Russia has undergone a change in its politics that we should not gamble away," Gabriel told reporters on the sideline of parliament in Berlin.

Putin's proposal to send a lightly armed peacekeeping mission to protect international monitors in eastern Ukraine was presented to the United Nations Security Council late on September 5 after Putin called for it during a press conference in China earlier in the day.

In calling for the UN peacekeeping force, Putin had insisted that it should be restricted to operating on the "demarcation line" between Ukrainian forces and the separatists and should only ensure the security of the unarmed mission from the OSCE.

"Should all of these conditions be met, in my view it will definitely benefit a resolution of the problem in southeastern Ukraine," Putin said at a press conference in Xiamen, China, after a BRICS summit there.

AFP reported that the draft resolution Russia presented to the UN council late on September 5 was restricted along the lines prescribed by Putin.

AFP said the draft specified that the peacekeeping mission would be deployed after a “complete disengagement of the forces and equipment from the factual line of contact” between Ukrainian troops and Russia-backed separatists.

Ukraine said it was “prepared to work on the issue” and dispatched its UN delegation to consult with the UN Security Council.

Ukraine's UN representative Volodymyr Yelchenko said President Petro Poroshenko will touch on the issue in his speech before the UN General Assembly on September 20.

But a key Ukrainian lawmaker objected to putting the peacekeepers along the front line of combat rather than at the Russian-Ukrainian border.

Iryna Herashchenko, first deputy speaker of Ukraine's parliament, said on Facebook that “the confrontation line has become a confrontation line because of Russia's aggression.”

“To us, this is a line of contact, namely contact with the temporarily occupied...territories. This is not a Ukrainian border, and therefore peacekeepers along the line of contact are out of the question,” Herashchenko said.

Peacekeepers should be deployed over the whole Ukrainian territory not currently controlled by Kyiv “to monitor the security situation and demilitarization," Herashchenko said. "Their mandate should end on the Ukrainian-Russian border.”