1.   A dispute on the dance floor quickly escalated into violence.

2.   Further violence could escalate into a full-scale armed conflict.

3.   Her fear was escalating into panic.

4.   The disturbance escalated into a full-scale riot.

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

6.   The conflict could escalate into a full-blooded war.

7.   The protests escalated into five days of rioting.

8.   The conflict has escalated into an all-out war.

9.   Fortunately, the cool relationship between the two nations never escalated into a hot war.

10.   An attack by guerrillas of the Liberation Tigers of Tamil Eelam on Army and police targets in eastern Sri Lanka in mid-June quickly escalated into a full-scale military contest.