1.   His dark glance passed briefly over her suddenly ashen face, returning to challenge his brother with an arrogant smirk.

2.   But the Chechen warlords, now back in Chechnya, vow they will regroup and return to challenge Russian forces in Dagestan.

3.   After the Soviet withdrawal, many of the so-called Afghan Arabs returned to challenge the Islamic legitimacy of regimes in their Arab homelands.

4.   Netanyahu was scheduled to return to Israel from abroad Sunday, but it was still unclear if he would return to politics to challenge the prime minister.