The shootdown happened the same night Iran launched a ballistic missile attack targeting U.S. soldiers in Iraq.
Two B-1B Lancers from the 28th Bomb Wing marked their first-ever flight with Ukrainian Su-27 Flankers and MiG-29 Fulcrums.
The White House has withdrawn the nomination of Elaine McCusker to become Pentagon comptroller.
The Pentagon announced Wednesday that top policy official John Rood has resigned.
Under the Defense Department's budget plan, funds for the European Defense Initiative would be cut to $4.5 billion.
Fighting between Russia-backed rebels and Ukrainian troops has killed more than 14,000 people since 2014.
The White House has been scrutinizing Bolton's book for classified materials.
Ukraine's President Volodymyr Zelenskiy acknowledged the recording's authenticity.
For days after the Jan. 8 shootdown, Iran denied that it fired missiles at the plane.
Hassan Rezaeifar was quoted by the state-run IRNA news agency as saying "we have no plans to send them out.”