Shock Force One Series by Rachel McNeely, Operation Alpha

Dr. Sonja Bradley is a determined woman who has spent her career caring for others, even if it means joining a compassionate mission to provide medical care to villagers in a war-torn area of the Middle East. While she accepted the risk, she never believed she and her companions would be captured by insurgents. 
Navy SEAL Nate Wheatley and his team are on a covert operation when they get orders to rescue a trio of American health workers... moreDr. Sonja Bradley is a determined woman who has spent her career caring for others, even if it means joining a compassionate mission to provide medical care to villagers in a war-torn area of the Middle East. While she accepted the risk, she never believed she and her companions would be captured by insurgents. 
Navy SEAL Nate Wheatley and his team are on a covert operation when they get orders to rescue a trio of American health workers. Though he is annoyed the women would so blithely put their safety at risk, he can’t help but admire the delectable doctor’s courage.Growing up, Sonja saw firsthand the toll her SEAL father’s job took on her mother and swore she would one day marry someone safe and sedate. There’s no room in her life for a domineering, arrogant warrior, even if there is a touching protective streak in him that’s a mile wide. Even if she can’t resist the vulnerability she senses in the gorgeous man. Nate once vowed to never give his heart to a woman while his country needed him. His job is too dangerous for divided loyalties—or so he’s always told himself. What’s a strong man to do when loving a strong woman is the only option left? less

Social worker Rebecca Larson has devoted herself to helping young women in trouble. Becky will do just about anything to champion the downtrodden, and that has landed her in some serious trouble on the streets. 
Tyler Howis loves his life as a bachelor almost as much as he loves being a Navy SEAL. While everyone around him seems to be getting married and settling down, casual relationships are his standard operating procedure—until now... moreSocial worker Rebecca Larson has devoted herself to helping young women in trouble. Becky will do just about anything to champion the downtrodden, and that has landed her in some serious trouble on the streets. 
Tyler Howis loves his life as a bachelor almost as much as he loves being a Navy SEAL. While everyone around him seems to be getting married and settling down, casual relationships are his standard operating procedure—until now. He can’t seem to keep his heart safe around a certain woman with fire in her eyes and danger at her back. Experience has taught Becky that putting her faith in a man is a fool’s game, and she’s no fool. It should be easy to resist Ty’s strong arms and commanding presence. It isn’t. Especially when a deadly threat follows her home. less