What options are European leaders considering in their response to the Ukraine crisis?

European leaders, meeting in emergency talks in Paris, are considering several options in response to the Ukraine crisis. These range from dramatically increasing defense spending to reduce U.S. dependency, to providing direct security guarantees to Ukraine. However, there's significant division among countries, with Germany rejecting calls from France and Britain to send troops to Ukraine. This resistance to various proposals underscores the challenges of achieving consensus within a politically fragmented Europe, highlighting the difficulty in forming a unified European defense response amid ongoing tensions with Russia.