1.   The fighting has escalated.

2.   This time the fighting escalated into full-scale war.

3.   Conditions are still very tense and the fighting could escalate at any time.

4.   Administration officials said that Yeltsin will be called on the carpet for the bloody Chechnya war just as the fighting there has escalated.

5.   But Israeli and Palestinian officials hardened their rhetoric Thursday as the fighting escalated.

6.   Diplomats and human rights officials fear the fighting will only escalate after the executions Friday.

7.   In fact, the fighting has escalated.

8.   The fighting escalated rapidly from some random automatic rifle shots, exploding into a furious exchange of mortar and tank fire and sparking random gunfire all over the city.

9.   The fighting has escalated into frequent gun battles.

10.   The fighting has escalated over the past several months, since a government crackdown on rebel activities.