The U.S. and the Philippines announce a joint task force to deter what Defense Secretary Pete Hegseth calls Beijing’s “coercion” in the South China Sea.
The U.S. military is sending an aircraft carrier to the waters off South America, in the latest escalation and buildup of military forces in the region.
The early warning radars on Greenland are key to defending the U.S. against nuclear attack, but they're vulnerable to hypersonic missiles, critics warn.