Complex sentence: On December 30 an 81-member emergency response team was deployed to Iran via U.S. military aircraft which consisted of search and rescue squads, aid coordinators, and medical support resulting in the first U.S. military airplanes to land in Iran for more than 20 years.
Split into simpler sentences: On December 30 an 81-member emergency response team was deployed to Iran via U.S. military aircraft, consisting of search and rescue squads, aid coordinators, and medical support. These were the first U.S. military airplanes to land in Iran for more than 20 years.