挟撃 （キョウゲキ） attack on both sides, pincer movement, double envelopment

挟む （はさむ） to hold between (e.g. one's fingers, chopsticks), to grip (from both sides), to put between, to sandwich between, to insert, to interpose, to catch (e.g. a finger in a door), to trap, to pinch, to insert (e.g. a break into proceedings), to interpose (e.g. an objection), to interject, to throw in (e.g. a joke), to be on either side of (a road, table, etc.), to have between each other, to be across (a street, river, etc.), to harbour (feelings), to cast (e.g. doubt)