CNN : Obama says the meeting ` ` very productive '' NEW : ` ` I ' m confident that we took a substantial step forward , '' Obama says . NATO is contributing combat troops , trainers to Afghanistan . Also marking France 's return as a full NATO member .
NEW : Obama says NATO meeting `` very productive '' NEW : `` I 'm confident that we took a substantial step forward , '' Obama says . NATO allies contributing combat troops , trainers to Afghanistan . Ceremony marks France 's return as a full NATO member .