Which one is better?

Its pivotal location has also exposed it to periodic invasions.



You can remove the 'has' .

Its pivotal location also exposed it to periodic invasions.

Joe

I agree. I read the first one a few times and it still didn't seem to make sense.

Is "it" something that existed - or was open to invasion - in the past? If there is still a threat to "it" then 'exposeS' is what you need. If referring to something from the past then Joe Nation's suggestion is definitely the correct wording.

I'm familiar with the Huns and Visigoths, but who the hell were the Periodics?

Re: Which one is better?


The location may determine it's invasion potential.

"The importance of the location dictated that it would be invaded frequently." That's my choice.

"Pivotal" denotes something else for me. If you want to use that locution, then I'd say, "The central location exposed it..."

... just my opinion. Hi, OristarA!

They were those Table of Elements guys, led by Dmitri Mendeleev.

Hehe, I might be partial. I especially appreciate Wy's opinion here. But Joe's idea is also excellent.