21.   Environmentalists were called to help assess the damage.

22.   In November, the army was called to help police fight drug traffickers entrenched in the sprawling shantytowns, where a quarter of Rio residents live.

23.   Millions of anti-disaster army reservists were called to help combat floods Sunday, after four days of heavy rain soaked the region, engulfing rivers and causing landslides.

24.   Neighbors, hunter friends and natural resources officials were called to help get the full-grown, male black bear out.

25.   New Haven emergency medical technician Myron Oliver was called to help Wilson and others who were injured in the crashes.

26.   That has strained resources there because firefighters are being called to help other states.

27.   Some shops stayed open until midnight to accommodate the throngs, and police were called to help keep order.

28.   The army with heavy machinery was called to help clear roads in some parts of the country.

29.   The meeting was called to help the four make the most of the global trading system.