Why does this Greek Orthodox monastery in Israel fly the English flag?

I was driving past [the Monastery of the Cross in Jerusalem](//en.wikipedia.org/wiki/Monastery_of_the_Cross) today and — well, I was driving, so I couldn't look too closely, but there appeared to be both [a Greek](//en.wikipedia.org/wiki/Flag_of_Greece) and [an English](//en.wikipedia.org/wiki/Flag_of_England) flag flying from it. A Greek flag I understand (it's a Greek Orthodox monastery), but I was befuddled by the English flag. I tried a Web search later, and couldn't find any information. (I did find [a picture of what appears to be _another_ Greek Orthodox site in Israel](https://previews.123rf.com/images/felker/felker1610/felker161000118/66315960-the-bell-tower-with-a-cross-and-flags-on-mary-s-tomb-orthodox-christian-church-in-jerusalem-israel.jpg) which is _also_ flying Greek and English flags. But I'm not sure what site this is — searching for the image gets me conflicting answers — nor that it's Greek Orthodox.) Why does the Monastery of the Cross (and possibly other Greek Orthodox sites) fly the English flag? Stock photo of *Monastery of the Cross*: