Close confinement encourages aggression and distorts instinctive behaviour patterns.

Some 'protective' measures can encourage recklessness or excessive aggression.

Whereas most modern performance cars encourage aggression through their virulence, the Stag suppresses it while getting there just as quickly.

The overall gameplay is supposed to encourage aggression rather than defensive tactics, such as sitting behind fortifications.

But settling conflicts one at a time will not facilitate peace; instead it will probably encourage Serbian aggression.

Instead, it encouraged aggression, first in Spain and then Germany.

And her mother said, "I'm not sure it's a good idea to be encouraging so much aggression and competition.

It also encourages domination and aggression.

There were terrible consequences then, when the international community did not stand up - it just encouraged aggression.

Research indicates that it won't - unless the child's family circumstances encourage aggression, too.