Paul R. Pillar is director of graduate studies at Georgetown University's Security Studies Program and a former national intelligence officer for the Near East and South Asia.

Several factors contributed to the demise of apartheid in the land where that term originated, South Africa. Inspired and timely leadership within South Africa was an important ingredient. But international agitation and pressure, based on a widespread sense of moral outrage, undoubtedly were also critical. The international response included unofficial boycotts and official sanctions, with great and lesser powers alike contributing.

International opposition to the most conspicuous current example of apartheid—Israeli subjugation of Palestinian Arabs—is not nearly as ubiquitous as opposition to the South African variety had become near its end in the early 1990s. But there are signs that it is growing. Organized efforts are aimed at boycotting products from settlements Israel has built in occupied territory in the West Bank. A recent noteworthy departure in the policy of a major power was Germany's refusal to toe the Israeli line in a vote in the United Nations General Assembly.

To the extent that international opposition to Israel's conduct toward the Palestinians may indeed be growing, there are good reasons. One is a realization that the Israeli version of apartheid is very similar in important respects to the South African version, and that moral equivalence ought to follow from empirical equivalence. Both versions have included grand apartheid, meaning the denial of basic political rights, and petty apartheid, which is the maintaining of separate and very unequal facilities and opportunities in countless aspects of daily life. Some respects in which Israelis may contend their situation is different, such as facing a terrorist threat, do not really involve a difference. The African National Congress, which has been the ruling party in South Africa since the end of apartheid there, had significant involvement in terrorism when it was confronting the white National Party government. That government also saw the ANC as posing a communist threat.

A fitting accompaniment to the similarities between the two apartheid systems is the historical fact that when the South African system still existed, Israel was one of South Africa's very few international friends or partners...