11.   The dispute has long marred relations between Russia and Japan.

12.   The polls closed late Sunday without violence, though religious disputes marred balloting in one county.

13.   The project also was marred by disputes among the crew and with sponsors over pay and other matters.

14.   The territorial dispute long has marred relations between Tokyo and Moscow, preventing the two countries from signing a comprehensive peace treaty ending World War II hostilities.

15.   The violence has heightened tension between Greece and Turkey, NATO allies whose relations have long been marred by disputes over Cyprus and territorial rights in the Aegean Sea.

16.   The dispute has marred the once cordial political ties, but economic relations remained intact.

17.   The dispute has marred relations between Iran and its Gulf neighbours.