We talked about incentives or disincentives for behaviour change, and it seems a lot of us are familiar with the sticks that are on the table, which are sanctions and ratcheting up military capacity in Ukraine to deter or make it costly for Russia to continue. Are there any carrots on the table, outside of removing sanctions? Is there anything we could offer to bring Russia into an agreement that is sustainable in the longer term and doesn't involve sanctions, or sticks?