I'm pretty sure the Israeli courts don't have jurisdiction in the US or Canada. 
Plantman, I'd hoped you could do better than the french fry argument from the KM forum, but I suppose that was too much to ask. Talk to a lawyer, and he'll explain it to you.
Thaiking, grow up man.
This is old hat, so I'll move on.
Damn, now I actually have to think of something more generic to make a point. I hate that.
How about drugstore? Bathroom? Water? Steak? website?
I'll trademark the word website and sue the pants of anyone who uses it.
Anyone who wants to say visit my website cannot do it anymore.
I used french fries to make it simple.
I'm sure you are aligned with the LA group in some way or else you might see my reasoning.
Is the term ju-jitsu, or karate trademarked or copyrighted? Nope. Would you have me or anyone else believe that Darren Levine and Jihn Whitman are smarter than anyone else who teaches a martial art? That they thought to own a name and no one else ever did.
You can't own a generic name. Soes anyone own Gracie jujitsu. I'm sure the gracie family does as it is specific and relates to their last name and their style.
Anyone else would have to teach brazilian ju jitsu and cannot use the name gracie.
IS that a better argument.
By the way, Krav Maga means "contact combat" do you think anyone can copyright that name? Or " Hand to hand combat" don;t think so.
As for consulting a lawyer, I don't need to, I'm not trying to claim a name for my own.
BTW, did I mention that David Kahn wrote a book titled Krav Maga and no one who supposedly owns the name could stop him, or stop any other krav instructor from teaching the same? I think I did.
I'm sure he's a smart guy and is making money of his book. What are the chances he consulted a lawyer? Probably very good or he probably wouldn't have written the book if the name belonged to someone else.
Have a great evening.