has allocated a new military assistance package for Ukraine worth $400 million, U.S. Defense Secretary Lloyd Austin announced during his to Kyiv on Oct. 21, Ukrinform reported.Later in the day, the Pentagon said in its press release that the recent package included HIMARS air defense systems, tube-launched, optically tracked, and wire-guided (TOW) missiles, M113 armored personnel carriers, Javelin and AT-4 anti-armor systems, and ammunition for high-mobility artillery.Washington also pledged to provide Kyiv with 155 mm and 105 mm artillery ammunition, as well as 60 mm, 81 mm, and 120 mm mortar systems and rounds, among other weapons and training equipment.The Pentagon chief arrived in Kyiv in a surprise visit to discuss further support for Ukraine as the uncertain U.S. presidential election looms.There are fears that if Republican nominee and ex-President Donald Trump beats his Democratic challenger, Vice President Kamala Harris, he might withdraw or scale down U.S.