I thought I read on the wiki somewhere that your def allies can only add maximum 10% of your military strength. So let's say that i have 1m def break points. That means with 2 def allies they can add an additional 100k def points for a total break of 1.2m without tech?
A country I just tried to break at 100% readiness and no weapons tech had:
193k troops x .6 - 116k
705k turrets x 1 - 705k
20k tanks.x 3 - 60k
total break points of 880k. Assuming the 10% def ally is correct i can add 180k def ally points for a total of 1.06m def points.
Now i sent 1.6m jets with 15% weapons tech and failed...
193k troops x .5 = 96k roughly (rounded up for mental math)
705k turrets x 1 = 705k
20k tanks.x 2 = 40k
Raw break = 841k (assuming zero tech/ gov difference)
Now double the raw and add 10 - 15% more for Mehul effect.
Given this fictitious example I would send 1.75 mil on a SS. I am a horrbile grabber though so, someone correct my mistakes please.