Complex sentence: Deeply attached to his Jewish roots, Dunkelman decided to emigrate to Israel when it gained independence from the British in the spring of 1948, becoming the commander of the 7th Brigade, the country's best-known armored brigade.
Split into simpler sentences: Deeply attached to his Jewish roots, he decided to emigrate to Israel when it gained independence from the British in the spring of 1948. There, he became the commander of the 7th Brigade, the country's best-known armored brigade.