Complete the following sentence: As part of this effort, United States Central Intelligence Agency (CIA) personnel operating from a base at Udon Thani, Thailand, took over the support of between 30,000 and 36,000 irregulars, including Hmong guerrillas who bore the brunt of the fighting in northern Laos. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ A variety of short take-off and landing aircraft used dirt airstrips carved out of the jungle by the Hmong. The Irregulars, who became known as the "Irregulars", who became known as the "Irregulars".
Secret Army, were instrumental in helping to rescue a large number of United States airmen who were shot down over Laos.<unk> Secret Army, were instrumental in helping to rescue a large number of ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️