why do i have leauge ships at base

I let my friend play my game for a day and when i got on to play i had league ships next to my base. how can you do that in the game i am still looking for allies.

We need a bit more info here Widow. What mission are you at? I suspect the league ships are there because there is a related mission that involves them. Old Frankie shouldn't be too far away . . .