hosstile takeover

An invasion of valuable real estate by half-ton four-legged animals dat neigh and whinny.

Little Joe Cartright's lumbering big brother led a herd of saddle-nags onto a NEIGHboring parcel of grassland owned by da sheep-ranch next door, and let said large maned critters graze and poop all over it --- talk about a HOSStile takeover!