Maybe one option would be a sort of galactic trench warfare.
I have a planet called Aleron HQ that has 46 society level, 30k people. Not the absolute best ratio, but could certainly be worse.
Whatever the case, it is fairly close to one of Oldry's planets. I'll be able to build PD on it within 2-3 weeks. Meaning within 4 weeks, I'll have PD stretching into Oldry's regional government zone.
I wonder what would happen if I colonized a planet close enough that, when it eventually got PD, it would be able to have an enemy planet within its range?
I think I may just try it. Send an arc and 50 subspacers (most efficient means of population transfer, for anyone who is curious) to some closer planet, as well as maybe 40 cruisers (I have another 40 in reserve at Aleron HQ). If I log every day, within 70-80 days we should have a PD covering Xi Monotes. Might not accomplish anything, but who knows?
