Please answer the following question: I know that the answer to the question "What do some officials do with funds received from fellow nation states?" is in "If the highest echelons of the governments also take advantage from corruption or embezzlement from the state's treasury, it is sometimes referred with the neologism kleptocracy. Members of the government can take advantage of the natural resources (e.g., diamonds and oil in a few prominent cases) or state-owned productive industries. A number of corrupt governments have enriched themselves via foreign aid, which is often spent on showy buildings and armaments.". Can you tell me what it is?
A:
enriched themselves