brussels european commission concern new u.s. sanction russia could impact europe energy security activate diplomatic channel resolve issue u.s. republicans democrats reach deal legislation allow new sanction russia lead concern europe unintended consequences follow process concern regard european union energy independence energy security interest activate diplomatic channel address concern u.s. measure u.s. counterparts commission spokesman tell news conference us g7 unity regard sanction key importance respect implementation minsk agreement european union interest discussions expect interest address free legislative process ongoing u.s spokesman say eu activate 'all diplomatic channel new u.s. sanction russia