`` We will defend our NATO allies , '' President Barack Obama says . Obama 's trip to the former Soviet state , ahead of this week 's NATO summit in Wales , is meant to reassure nervous Eastern Europe that Putin 's support for separatists in Ukraine does n't mean he has a free pass for territorial gains elsewhere . Peaceful Europe `` threatened by Russia 's aggression against Ukraine , '' Obama says . Militant Islamists ' gains in Iraq and Syria also cause for concern for NATO members . The president warns that the Islamic State is a threat to all of us "
`` We will defend our NATO allies , '' President Barack Obama says . Peaceful Europe `` threatened by Russia 's aggression against Ukraine , '' Obama says . Militant Islamists ' gains in Iraq and Syria also cause for concern for NATO members . The president warns that the Islamic State is a threat to all of us "