A French Mirage 2000 fighter jet, accompanied by a French Rafale, refuels with an airborne Boeing C-135 refuelling tanker aircraft above the Mediterranean Sea

A French Mirage 2000 fighter jet (R), accompanied by a French Rafale (L), refuels with an airborne Boeing C-135 refuelling tanker aircraft from the Istres military air base during a refuelling operation above the Mediterranean Sea March 25, 2011. France continues its military air sorties over Libya with NATO indicating that the no fly zone operation could last three months. REUTERS/Jean-Paul Pelissier (FRANCE – Tags: MILITARY CONFLICT)