Yeah watching a ww2 youtube series , british fixation with greece and almost abandoning their north africa campaign for it are real strange things especially with hindsight to be honest. And seeing as the brits knew that the germans were about to attack the soviets it makes it even worse to be honest wich makes a smaller BEF even more pointless and even more threatening than usual aswell . I still dont understand who was driving it. The greeks also werent very thrilled with the idea is another point and only wanted troops if enough were sent and even then they werent very thrilled about it cause they were kicking italian ass fine enough on their own.
If the brits could somehow convey to the germans that it isnt a land commitment and we are mainly helping with supplies and airpower and kicking the italians. Then there would be a slight chance of maybe not the germans getting distracted with the balkans before barbarossa. Wich could be rather major since it was delayed over a month from its start date. The axis would be protected (if early enough ) by the neutral countries of bulgaria and yugoslavia atleast from land attack and all they would have to do would keep them neutral atleast wich shouldnt be too difficult to do.
Adding Greece and Yugoslavia to the Allies adds 1.5 million soldiers and a new threat to Germany
Also the British knew about Barbarossa a week after it was decided by Hitler and his evil sidekicks - this included the originally planned date - and therefore so did Russia because the British told them.
Stalin though put his fingers in his ears and made farting noises claiming he could not hear them - the delay - mainly due to heavy weather flooding airfield etc meant that when the original date came and went it made the British data (and supporting intel from other sources) look even more suspect to Stalin who did not want to believe it.
And that is on him.
When we look at Greece in isolation it looks foolish, when we look at it and also look at North Africa it looks even more foolish.
However when you take into account the known planned attack into Russia the 'Greek Adventure' suddenly starts to make a lot of sense as the picture widens to include the events of Barbarossa which started
One of the issues Wavell had with regards to Rommel is that Rommel was sending plaintive missives to his leaders begging for more equipment and was deliberately downplaying his capabilities, not too fool the British, but to fool his masters so that they would send him more stuff.
This had the effect of his masters sending him more stuff but also convincing Wavell, via intel such as Enigma decryption, that he had more time to refit his worn out formations and send W force to Greece, before Rommel could possibly mount any attack.
The subsequent impact of this was serious for the British but given the subsequent massive losses on the Russian front and the potential for Russia to have been defeated it is actually criminal for the attempts to support the Greek's and bring Yugoslavia into the fold and possibly with Russia joining Turkey as well not to have been made.