(CNN) -- Britain and France are calling for an additional 3,000 United Nations troops in the Democratic Republic of Congo, where the U.N. already has its biggest peacekeeping mission, a senior British diplomat said Wednesday. A U.N. peacekeeper rides atop an armored vehicle last week in Goma, Democratic Republic of Congo. Mark Malloch-Brown, the British Foreign Office minister for Africa, the Middle East and the United Nations, announced a draft resolution on the troop increase while on a four-day mission to the war-torn Congo. Britain expects the U.N. Security Council to adopt the resolution by the end of the week, a spokeswoman for the British mission to the United Nations said.
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Peacekeeping mission in Democratic Republic of Congo is already U.N.'s largest
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Britain, France call for 3,000 more U.N. troops in Congo
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Human rights groups in Congo also have been calling for more troops there
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Fighting in Congo has caused about 250,000 people to flee homes since August
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"Our concern is that it is going to take three months [for the @placeholder] to get anybody on the ground," she said.