21.   Invasion, while illegal, is a common pressure tactic used by Indians demanding the demarcation of their lands.

22.   Separatist groups have long used violent attacks on businesses and individuals as a pressure tactic in their struggle.

23.   Serbs also have denied U.N. convoys permission to cross their territory as a pressure tactic.

24.   The pressure tactic appeared aimed at isolating the government-held city as Bosnian government forces mount offensives against Serbs in several key areas of the country.

25.   The state intervenes only in extreme cases and imprisonment is a rarely-applied last resort pressure tactic.

26.   They also have denied U.N. convoys permission to cross their territory as a pressure tactic.