There's a pretty high jump from "Hitler helped the rebels during the war" to "the Civil War was orchestrated and triggered by foreign powers".
Semantics.
It's not semantics, sometimes people happen to rebel without it being the machinations of a foreign power.
I would strongly disagree regardless of that factor. If there's a realistic chance it'll make a difference, I would say you're orchestrating things. Even if not, it still is.
There are always people looking to rebel. For all sorts of reasons. Injustice. Ethnic alliances (esp. popular in Africa). Regional alliances (e.g. Catalonia, and the Balkans in general: the cities want to secede from their countries). Religious differences (esp. one particular religion, but not exclusively). And some want to purely for personal gain (famously in South America).
Even when there is no chance of making a difference. You could say yesterday's attack in Manchester was carried out as a rebel act, to get the UK to govern itself according to the islamic religion. That is certainly a true statement, even if very unpopular. Providing material support for such things is definitely orchestrating, even though it has essentially zero chance for success.
Both Hitler and the British intelligence offered logistical help to the rebels. The coup was already planned for months by the generals, and they were just waiting for the appropriate time to strike. The moment came when the police murdered Calvo Sotelo, not when the Nazis and British encouraged them.
- Lenin famously had to ride a train through half of Europe to get back into Russia and stir up trouble. The involved countries knew very well who he was and what he was going to do (he was under surveillance, like most activists before and since), but they let him pass in order to help destabilise a neighbouring power.
- Italian unification was aided by the British, which controlled most of the Mediterranean at the time. Whenever this or that bunch of "united Italy" guerrilla left a port directed to the country, the British would help them by providing cover and supplies. This was done in order to create new headaches for France and Austria, then the dominant powers in fractured Italy.
- The Spanish civil war was heavily influenced by foreign powers, with Germany and Italy instigating and materially supporting Franco, the USSR helping the Republic, and everyone else providing covert support for this or that faction.
Etc etc.