In the decade following the 1983 presidential election Suharto enjoyed nearly undisputed ascendancy, despite controversies over an extra-judicial state terror campaign (the Petrus killings), army reforms, an oil crisis, the role of his children, and patrimonialism and corruption more generally. The 1988 elections saw the appointment of Sudharmono as vice-president, part of a broader move away from the army. As he aged, Suharto faced the loss of friends from his own generation (and in particular his wife Ibu Tien in 1996), a decline in personal ties to subordinates, and a general loss of touch. He fell back on his familiars and tried to find new sources of support: he promoted Habibie rapidly (though the army imposed Try Sutrisno as vice-president in 1993), indulged his children, tried to bolster his Islamic credentials (risking ethnic and religious sectarianism), and took a growing interest in his status as an international leader.