Complex sentence: Given the small size of Canada's military, the importance of Canada's contribution to NATO has primarily been political rather than military, However during the 1999 Kosovo War Canadian CF-18 jets were actively involved in bombing Yugoslavia.
Split into simpler sentences: Given the small size of Canada's military, the importance of Canada's contribution to NATO has primarily been political rather than military. However, during the 1999 Kosovo War Canadian CF-18 jets were actively involved in bombing Yugoslavia.