Complex sentence: When she reached 18 years of age she enlisted in the Israeli army and completed her required military exams, but the army designated her a sports prodigy, and postponed her military service until after she finishes her golf career.
Split into simpler sentences: When she reached 18 years of age, she enlisted in the Israeli army and completed her required military exams. But the army designated her a sports prodigy, and postponed her military service until after she finishes her golf career.