For Liberty by Reagan James

When feisty & independent trauma nurse Lizzy Collins attends the wedding of her best friend, the last person she expects to meet is notorious wild boy, super soldier and detonation expert Ty Powers.
Sparks fly (literally) and the two realize they have a connection unlike any other, but before Lizzy can tell Ty about the risky volunteer trip she is about to embark upon, Ty is called to a dangerous and suspicious mission. A shocking turn of events leaves the two lovers in peril—each in their own serious amount of trouble. Ty must not only fight for his country, he must also risk his life, for love.