I have got to agree with Rommel_Sniper. I do not post here much anymore but downright wrong interpretations on 'what is anarchism' I cannot chose to ignore, especially when the clear examples of Ukraine and Spain are brought up (and more, for instance the 'temporary autonomous zones' like the Paris Commune, the post-WWI enclave of Fiume, pirate Tortuga, and others).
Let's make this clear once and for all: anarchism as a political ideology is NOT about burning everything down and all being disorderly. That is what 'democratic', fascist and stalinist propaganda taught us to think about it, in a similar way modern day media coverage on antiglobalist marches focus on destruction and not on its many constructive alternative systems.
The idea is restructuring government (and yes, there is always a system of governance, the few anarchists who deny that concept are hopelessly naive but luckily rather few in number) in such a fashion as to minimize the power of centralized structures on individuals, by redistributing the power among the people themselves. In Spain for instance both CNT-FAI (anarchist federations) and POUM (trotskyist communists) reorganized their nation to remove landowners to share the land among the people actually using it, remove factory bosses to share the responsibility and the wealth both to those who operate the factory, organise the military based on the earned respect of its leaders instead of just needing to follow someone who had more stripes, with failure to do so meaning execution - and so on.
Needless to say, a Western boss whose factory is 'stolen' to be governed by its labourers isn't very happy about it. It is no big question why Spanish industrialists favoured Franco and the West turned a blind eye, even secretly supported Franco as well. Next, Stalin did not want any revolution which wasn't HIS, so he had his men destabilizing the CNT-FAI and the POUM from day one. Just for the sake of the correct remembrance of the idealists who died betrayed in Spain, there is NO proof that both people oriented agriculture, militia and industry functioned worse under anarchism, on the contrary in many cases - but they were betrayed, left alone and forgotten. For a good reason: the ideas are dangerous to the status quo even onto this very day, so a living memory is thorougly supressed.
I do not ask anybody to agree on anarchism or non-hierarchal communism, but I only ask to try and look beyond the propaganda to what really happened, for the sake of all the people who died because of their idealism. Please read George Orwell (Homage to Catalonia) or anything by Emma Goldman, or the many internet sources on the SCW in Spanish found around the net, just to understand what really happened there.