引狗入寨

to lead the dog into the village (idiom) / to introduce a potential source of trouble

dog / CL:隻|只[zhi1],條|条[tiao2]

to enter / to go into / to join / to become a member of / to confirm or agree with / abbr. for 入聲|入声[ru4 sheng1]

to draw (e.g. a bow) / to pull / to stretch sth / to extend / to lengthen / to involve or implicate in / to attract / to lead / to guide / to leave / to provide evidence or justification for / old unit of distance equal to 10 丈[zhang4], one-thirtieth of a km or 33.33 meters

stronghold / stockade / camp / (stockaded) village

variant of 寨[zhai4]