#He divided his men against them at night and attacked them

This probably refers to a battle strategy: "Abram divided the men into several groups, and they attacked their enemies from various directions" (UDB).

#all the possessions

This refers to the things that the enemies had stolen from the cities of Sodom and Gomorrah.

#and his goods

"and Lot's property that the enemies had stolen from Lot"

#as well as the women and the other people

"as well as the women and other people that the four kings had captured"