# Striking the Focus

-[Interrogator Saends](https://kgco.AspenArkive.com/books/asterion-factions/page/interrogator-emilios-saendsbrother-sands "Interrogator Emilios Saends/Brother Sands") has explained that Incursions of this nature typically have a Focus from which contact between the materium and immaterium is solidified. Destroying this focus would thus cut off the ability of warp entities to continue their invasion. A small strike team is most likely to succeed in such a mission.