"We will also need to maintain our unity," he said.
"We need unity when it comes to the security of our Eastern member states, notably the Baltics. The security and the borders of EU member states are untouchable. I want this to be understood very clearly in Moscow," said Juncker.
"We need more unity when it comes to sanctions. The sanctions the EU has imposed on Russia have a cost for each of our economies, and repercussions on important sectors, like farming. But sanctions are a powerful tool in confronting aggression and violation of international law. They are a policy that needs to be kept in place until the Minsk Agreements are complied with in full. We will have to keep our nerve and our unity."
"A spirit of cooperation between the EU and Russia has given way to suspicion and distrust," Juncker said.
"The EU must show Russia the cost of confrontation but it must also make clear it is prepared to engage."