Bring on the dusk

"Name: Claudia Jean Casperson. Rank: Captain, SOAR - 160th Special Operations Aviation Regiment (Airborne). Motto: Night Stalkers Don't Quit. Name: Michael Gibson. Rank: Colonel, Delta Force -- Special Forces Operational Detachment -- Delta (The Unit). Motto: Without Equal. Mission: To go together where no one else can, and to get out alive with no one the wiser. Five nations surround the Caspian Sea, five nations desperate for the vast resources there, and willing to go to war. It will take all of Claudia and Michael's ingenuity to avert disaster. As they discover how right they are for each other, it will take even more to breach the walls they've so carefully built around their hearts"--Page 4 of cover.