such...that

Hi everybody. Sorry to bother you but I need a structure in Japanese. There may not be exact equivalent ıf this structure but transformation of meaning is important actually. The structure is that: "This event is such a big event that it can stop wars."
おねがいいたします。
Thanks in advance.

The simplest structure would be:
- Kono ibento wa amari ni ookikute, senso wo tomerareru hodo desu."

{A] wa amari ni [adjective in te-form], [what can happen] hodo desu.
[A] is so {adjective} that it is of an extent that [something can happen].

I used the katakana word for "event," but if you mean "happenings/incidents" in general, you should use the word "dekigoto" instead of "ibento."

Thank you very much. たすけてくれました。