Since the end of World War II, the United States has remained a global power through foreign policy defined by what retired Ambassador Ryan Crocker calls a "three-legged stool" of defense, diplomacy and development.

The U.S. Agency of International Development is expected to be reduced to about 290 workers from the more than 5,000 foreign service officers, civil servants and personal service contractors it currently employs,

The largest U.S. government workers' union and an association of foreign service workers sued the Trump administration on Thursday in an effort to reverse its aggressive dismantling of the U.S. Agency for International Development.