So, towards the end of the recent war, I went into economic-mode due to depleting my warchest. I was unconcerned about being attacked as long as I maintained some nukes and stayed in the 60K NS range.
Today, I just happened to look through my nation's info page, scroll down, and noticed something unusual.
5 Guerrilla Camps...
And I had already done a mini-infra jump from around 3.5K to 3.99K a few days ago.