<prompt> Pedzisa mutsara unotevera: Munguva yose yeThe Troubles, Provisional IRA yakashandisa zvikuru IEDs muhondo yavo ya1969-1997. Vakashandisa zvimbambaira zvinoparadza dzimba dzevarwi uye zvimbambaira zvinoshandiswa nechokure. Mitezo yeIRA yakagadzira ndokurwisa-kugadzira zvombo namano. Mabhomba eIRA akava akaomesesa zvikuru, aiva nemidziyo yokudzivisa kubatwa nayo yakadai sechinhu chinoshandura kurerekera kwemekiyuri kana kuti microswitches. Midziyo iyi yaizoputika bhomba racho kudai raizofambiswa munzira ipi neipi. Kazhinji, chishandiso chekuchengetedza chishandiso chaishandiswa yaive wachi Memopark timer, iyo yakashongedza bhomba kusvika pamaminitsi makumi matanhatu mushure mekunge yaiswa nekuzadza dunhu remagetsi rinopa simba kuchinhu chinorwisa kubata. Zvichienderana nechinangwa chakasarudzika semuenzaniso, boobytraped briefcase kana mota bhomba yakazvimiririra yemagetsi yakapa simba kune yakajairika timer yakatarwa kwenguva inotarisirwa nguva, semuenzaniso maminetsi makumi mana. Zvisinei, kumwe kunonoka kwamagetsi kwakagadzirwa navanamazvikokota veIRA kwaigona kugadziridzwa kuti kunyatsoita kuti bhomba riputike mavhiki pashure pokunge ravigwa, izvo ndizvo zvakaitika mu  <response>: Bhomba rokubhomba hotera yeBrighton ra1984. Pakutanga, mabhomba aiparadzwa nechinhu chinoridza nguva kana kuti netambo yomurayiro. Gare gare, mabhomba aigona kuputika nokudzorwa neredhiyo. Pakutanga, maservo akareruka anobva mundege dzinodzorwa neredhiyo aishandiswa kuvhara dunhu remagetsi uye kupa simba kune chinoputika. Pashure pokunge vaBritain vagadzira zvinovhiringidza, nyanzvi dzeIRA dzakatanga kugadzira michina yaida nhevedzano yemakodhi eredhiyo anobaya kuti iite kuti ishande uye iite kuti iputike. Aya akanga akaoma kurovera. 