The Expansionist is supposed to always be able to trespass, but that is not how it works in reality. The game is bugged so that certain types of movements are prohibited. These are:

1) Cannot split an army that is trespassing

First two screenshots show that splitting doesn't work with either unit, 3rd screenshot shows that its a legal spot to move since whole army can move there.

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2)Cannot merge armies that are trespassing

Two different examples of not being able to merge.

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3)Cannot split armies before trespassing (The army is located in friendly territory and is splitting off into enemy territory)

First screenshot showing not being able to split, second screenshot shows its a legal move, since it allows whole army to move there.

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Steps to Reproduce

Play as an Expansionist civ and try any of these manuevers. I've never had it where it would allow these movements.


Expected Behaviour

Units and armies that are trespassing should behave exactly the same as they do when at war (move with complete freedom) except for not being allowed to move into enemy cities or attack.