Complex sentence: The CNIS has been active across Canada through its Public Engagement Program, which publicizes the need for access to safe surgical and obstetrical care in Africa and recruits Canadian surgical professionals to international surgery projects.
Split into simpler sentences: The CNIS has acted across Canada through its Public Engagement Program, which publicizes the need for access to safe surgical and obstetrical care in Africa. It also recruits Canadian surgical professionals to international surgery projects.