Kree Sentry

 

When the Kree identify a planet they desire, they dispatch a Kree Sentry robot, which "pacifies" the native race on the planet.  If the planet's inhabitants are advanced enough to defeat the Sentry, the Sentry robot detonates the Nega-Bomb it carries within its form, which will kill everyone on the planet, making it suitable for Kree habitation.

The Kree Sentry robot stands approximately twenty five feet tall, and has a multiplicity of armaments, ranging from optic blasts to tentacles with blasters and whirling blades, spikes, missle launches, and legs that can entrench the Senty in a fortified position.