The Army Doctor's Wedding (Army Doctor's Baby #2‪)‬

Major Cameron Knight thrives on the danger of front-line battlefield medicine. Throwing himself into saving the lives of injured servicemen keeps the demons from his past away. When he rescues charity worker, Alice Conway, and a tiny newborn baby, he longs for a second chance to do the right thing, even if it means marrying a woman he barely knows so they can take the orphan baby to England for surgery. The brave, beautiful young woman and the orphan baby steal his heart. He wants to make the marriage real, but he can never care for them as he longs to while he is stationed overseas away from home.

Other books in the Army Doctor's Series. (Books can be read in order or as stand-alone reads.)
#1 The Army Doctor's Baby. He falls in love with his brother's girlfriend.
#2 The Army Doctor's Wedding. A marriage of convenience to adopt an orphan baby.
#3 The Army Doctor's Christmas Baby. Heartwarming Christmas romance.
#4 The Army Doctor's New Year's Baby. His commanding officer's sister is irresistible.
#5 The Army Doctor's Valentine's Baby. An abandoned baby brings two lonely doctors together.
#6 The Army Doctor's Honeymoon Baby. Best friends become lovers, but a family secret threatens their happiness.