WASHINGTON, Jan 31 (Reuters) - The United States is readying more than $2 billion worth of military aid for Ukraine that is expected to include longer-range rockets for the first time as well as other munitions and weapons, two U. In addition to the USAI funds, more than $400 million worth of aid was expected to come from Presidential Drawdown Authority funds, which allows the president to take from current U. That aid was expected to include mine-resistant ambush-protected vehicles (MRAPs), guided multiple launch rocket systems (GMLRS) and ammunition