Question
The situation in Israel is extremely grave right now, and Jewish people - both soldiers and civilians - are in extreme danger. Why is there no mention of a public yom tzom? Is there a specific aspect of a ta'anit tzibur that is not applicable to this case? In the event that the rabbanim don't proclaim a yom tzom, can an individual take it upon himself? Is there a specific day that is myua'd for this? What are the implications of such a fast? Does it start with hanetz hachamah and end with shkia'h? Thank you very much.