Tactics: Let's conquer an alien planet.

Would we be sending this message in the clear or make some attempt to hide our actions from the other governments, at the moment do we have a method to send a message without anyone else detecting it? We could use one time pads later but at the moment could laser comms be picked up by another government.

The first message would be in the clear but a time could come where covert communications with another government could be useful.