Biden's internal debate leads to decision on F-16s for Ukraine.

President Biden's decision to allow allies to train Ukrainian forces on how to operate F-16 fighter jets and eventually provide the aircraft themselves came after months of internal debate and quiet talks with allies. The change in Biden's position seemed sudden, but discussions that included senior White House National Security Council, Pentagon, and State Department officials began in February. The U.S. officials shifted toward the view that it was time to provide Ukraine's pilots with the training and aircraft needed for the country's long-term security needs. The U.S. Air Force has quietly determined that the actual training could realistically be done in about four months.