The Obama administration has confirmed they are considering having talks with Russia over their build up in Syria and the future of the Syrian state.

Secretary of State John Kerry said that U.S. officials continue to voice concerns with Russia about their military buildup in support of embattled Syrian President Bashir al-Assad.

Kerry told reporters that Russian Foreign Minister Sergey Lavrov suggested “military-to-military conversation and meeting in order to discuss the issue of precisely what will be done to de-conflict with respect to any potential risks that might be run and have a complete and clear understanding as to the road ahead and what the intentions are.”

“You have to have a conversation in order to do that,” Kerry told reporters. “It is vital to avoid misunderstandings, miscalculations (and) not to put ourselves in a predicament where we are supposing something and the supposition is wrong.”

Defense Secretary Ashton Carter said through a spokesman that because of the close relationship between Kerry and his counterpart he would be deferring the military discussions to Kerry.

The move comes amid criticism that Russia is trying to exploit the U.S.’s lack of action in Syria.

“Into this vacuum has now stepped Vladimir Putin,” Sen. John McCain, the committee chairman, said of Russia’s president. “As in Ukraine and elsewhere, he perceives the administration’s inaction and caution as weakness, and he is taking advantage.”