"Americans are from Mars, Europeans are from Venus: they agree on little and understand each other less and less"

This quote by Robert Kagan is a metaphor for the growing divide in between the United States and Europe. It suggests that the two sides are so various that they are from different worlds, which they are progressively unable to understand each other. This is likely a referral to the growing political and cultural distinctions between the 2 sides, in addition to the increasing difficulty of finding commonalities on problems such as trade, immigration, and diplomacy. The quote implies that the divide between the 2 sides is growing, and that it is ending up being significantly challenging to bridge the gap. This is a stark tip of the value of discovering common ground and understanding in between the 2 sides, in order to guarantee a peaceful and flourishing future.