Complex sentence: For the first three years in this force, he served as Search and Rescue Company Commander; furthermore, he completed Officer Basic Course and pursued professional training in the UK in 2009 and Japan in 2010.
Split into simpler sentences: For the first three years in this force, he served as Search and Rescue Company Commander. Furthermore, he completed Officer Basic Course and pursued professional training in the UK in 2009 and Japan in 2010.