51.   Then, in a reminder of a shared past, both countries harked back to their historical relationship, which was a friendship molded by their common enemies.

52.   The United Nations must have the courage to recognize that just as there are common aims, there are common enemies.

53.   They beamed at each other, new-found allies against a common enemy.

54.   They joined forces over the summer to mount a series of successful offensives against their common enemy, the Bosnian Serbs.

55.   They have common enemies.

56.   They chose five years ago to make me the common enemy.

57.   This year, Republicans have regrouped by fastening upon a common enemy.

58.   To some extent, the quarrel between traditionalists and theorists may be distracting both schools from the real common enemy they face.

59.   Thus, South Korea may become the target of more violence as North Korean leaders try to redirect anger against themselves toward a common enemy in the South.

60.   We Americans lost our most recent common enemy, of course, when Howard Cosell died.