The Army would receive $395 million to modify Stryker armored vehicles with double-V hulls, under the Obama administration’s proposed 2014 defense-spending bill. The new design would provide passengers with better protection from improvised explosive devices (IEDs). The $15.9 billion earmarked for procurement of Army weapons systems, vehicles, and aircraft also includes $178 million in system enhancements for the M1A2 Abrams tank, and $158 million to restore vehicle size to Bradley fighting vehicles that had undergone mobility and survivability modifications for combat operations in Iraq and Afghanistan.