be involved in the cleanup operation to ensure there were no traces

брати участь в операції із зачищення слідів (про розвідку / термін спецслужб)

amount of traces left by a military object (to be hidden)

cleanup of radioactive areas

As you were, sir / ma'am!

The following problems with your configuration were detected

indicate how many GPS satellites were found

been there, done that

who goes there?

There are custom defaults for this board available

There are simply not more ESCs connected

There is a newer version of the firmware available

There is no motor output protocol selected

supports every analog and digital protocol (out there)

capacity to ensure international security

ensure attrition of threats

ensure continued national political authority

ensure coordination

ensure national security

ensure peace and stability in the region

ensure safety in the airspace

ensure the defense

ensure adequate provisions

ensure maximum reliability

ensure economic and informational security

Warning! Ensure props are removed!

clandestine operation; covert operation