Verses with the word expert in the Apocrypha (2 verses):

Baruch 3:26
There were the giants famous from the beginning, that were of so great stature, and so expert in war.

1 Maccabees 4:7
And they saw the camp of the heathen, that it was strong and well harnessed, and compassed round about with horsemen; and these were expert of war.