President Barack Obama's proposed defense budget includes $130 billion for two US wars, a figure that may not be enough. And his Democratic allies in Congress are threatening to set conditions that must be met before that money is handed out. Obama sent to Congress on Thursday details of his proposed $664 billion Pentagon spending plan for the budget year starting in October. It includes $534 billion for base defense programs and $130 billion for overseas operations, including the wars he's ramping down in Iraq and ramping up in Afghanistan. The budget aims to cover what the Defense Department needs "to fight the wars we are in today and the scenarios we are most likely to face in the years ahead, while at the same time providing a hedge against other risks and contingencies," Defense Secretary Robert Gates said in a statement released in Washington as he traveled in Afghanistan.