US announces $400 mln in new arms aid to Ukraine including tactical bridges, ammunition

"Assault bridging allows armored vehicles to cross narrow rivers and ditches that would otherwise cause a whole force to slow down," Jack Watling, a senior research fellow for land warfare at the London-based Royal United Services Institute, tells Reuters. "Importantly, assault bridges are only critical for offensive operations, showing that the U.S. is preparing Ukraine to continue retaking its territory."