WASHINGTON (AFP/Reuters) - The US Senate has rejected emergency funding for military operations in Afghanistan, sending it back to the House of Representatives because it included billions in non-military spending. The budget supplemental is intended to finance the 30,000 extra troops that US President Barack Obama ordered to Afghanistan in December. The senators, however, rejected late Thursday the funding language approved by the House on July 1, which included some $20b in spending on items including teaching positions, youth summer jobs, and scholarships. The Pentagon says they need the money before Congress goes on its summer recess in August to properly fund war operations. The Senate approved the supplementary funding in May, but the House added provisions for education, with lawmakers defending the additions as addressing urgent needs for education spending. The current measure also includes $2.8b for aid to Haiti, as well as money to pay for the US withdrawal from Iraq, aid to Pakistan, and funds for the Federal Emergency Management Agency (FEMA), responsible for federal assistance when natural disasters strike. The US Senate approved funds to pay for Obamas Afghanistan troop increase, but refused to sign off on billions in extra nonmilitary spending sought by the House of Representatives. The Obama admin in February asked for $33b to pay for the 30,000 increase in troops for Afghanistan that the President announced last December. Congress, controlled by Obamas fellow Democrats, delayed voting on the surge funds for months as domestic priorities took precedence and unease about the war grew. The House and Senate eventually passed different versions of the legislation, and are now trying to reconcile them. They must pass the same version before sending it to the president to sign into law. The Pentagon has warned Congress it may be forced to take extreme measures such as not paying salaries if the troop surge money is not passed before lawmakers begin an August recess. The House recently voted for the $33b for the troop surge after adding funds for domestic programmes, including $10b for education jobs. And 162 House members demanded a withdrawal timetable from Afghanistan, although that amendment failed. That House version failed 46-51 to clear a procedural hurdle in the Senate on Thursday evening. Then senators, on a voice vote, insisted on the version of the war funding bill they had passed in May, including their own additions for US disaster relief and aid to Haiti. They lobbed it back at the House, which is in session for one more week before the August break. The Senate is expected to stay for two more weeks. The $33b is to fund the Afghanistan troop surge but also includes some money for operations in Iraq, where the US is preparing for a full troop pullout by the end of 2011. The Senate-passed bill includes an additional $4b for the State Department to fund the civilian surge, bringing economic aid to Afghanistan and neighbouring Pakistan. The money is in addition to about $130b Congress has already approved for Afghanistan and Iraq for this year - and more than $300b since 2001 for the war in Afghanistan.