The Cowboy And The Cossack

Description for THE COWBOY AND THE COSSACK by Merline Lovelace:

THE RELUCTANT RULER

Alexandra Jordan was hardly thrilled to be appointed leader of her late grandfather's ancient Russian tribe, but she had to help her people, who were long on troubles and short on everything else, especially weapons -- and men! So when Omega Agent Nate Sloan showed up, allegedly to deliver a champion stallion, Alexandra couldn't help but be suspicious - even though she was as aware of his charms as any of her love-starved tribe mates...

Nate was after Alexandra, all right -- for the crucial nuclear coding device she had in her possession. But as the Wyoming rancher-turned-agent found himself increasingly mesmerized by Alexandra, he began to wonder if the key to her people's future was all she held in her delicate hands...

This is #2 in Code Name:  Danger