Cannot use landing forces? (White Giant)

I have a problem where I cannot use my landing forces.

I keep getting this message:

"The nearest is First Venice Military Airport Military Airport in the country Anarchist Republic of Venice. The distance to that airport is 2,451.86km."

But how is this even possible! If my military airports and landing forces are in the same country, it is impossible for them to be so far away from each other. But I keep getting this message, rendering my forces useless.

Dunno, I would first check on the units reported location, you might find they have somehow materialised somewhere else. Secondly return them to their depot and try again when they are there. Lastly, dismantle them and rebuild.

you must use a rapid deploy unit in a country not next to you
then wait for the airport
I hope you got an air transport unit

Matt, that is incorrect, not true. Please stop spreading unhelpful advice around because new players will believe you, and it could hurt their success.

Ahmose, are your transport units and landing forces at the same airport?