U.S. President Joe Biden and Ukrainian President Volodymyr Zelensky on Thursday signed a 10-year bilateral security deal between the two countries in a move applauded enthusiastically by Kyiv as “historic.” The BBC reports the pact envisages U.S. military and training aid to Ukraine – but falls short of binding Washington to send troops to fight alongside its ally. According to the White House, the security deal will see Washington and Kyiv work in tandem to build and maintain Ukraine’s defence and deterrence capability, bolster the country’s defense industrial base, and support economic recovery and energy security.