Just finished first game with Portugal and could have won anyway I pleased. (Had 44 delegates but finished domination.) By getting Freedom's Arsenal of Democracy and spamming Nau's for gold before gifting to CS I could ally with them all.
Arsenal of Democracy: +25% Production towards Military Units. Gain 20 Influence from each Military Unit gift to City-States.
Once thery're friendly territory you can jump paras (with now 9 hex drop instead of 5) from CS to CS. Then on the onset of war drop and pillage oil wells, railroads, caravans. Paras now don't cost movement points to pillage so they can cause real havoc and still move out of city range. Most of mine had cover promos but could still retreat to CS for another drop without being hit. Eliminating all enemy oil on the first turn is amazing.
Arsenal of Democracy: +25% Production towards Military Units. Gain 20 Influence from each Military Unit gift to City-States.
Once thery're friendly territory you can jump paras (with now 9 hex drop instead of 5) from CS to CS. Then on the onset of war drop and pillage oil wells, railroads, caravans. Paras now don't cost movement points to pillage so they can cause real havoc and still move out of city range. Most of mine had cover promos but could still retreat to CS for another drop without being hit. Eliminating all enemy oil on the first turn is amazing.