Complex sentence: In 1999, Ömer Halisdemir joined the Turkish Armed Forces as a non-commissioned officer of the infantry, and served in southeastern Turkey in Şırnak and Silopi and also outside the country in Northern Iraq and Afghanistan.
Split into simpler sentences: In 1999, Ömer Halisdemir joined the Turkish Armed Forces as a non-commissioned officer of the infantry. He served in southeastern Turkey in Şırnak, Silopi and also outside the country in Northern Iraq and Afghanistan.