The OP assumes anyone can make up a tefila and every shul in every community should accept it. The Chazon Ish addressed this matter in a letter (appears in Kovetz Igros) when someone asked about designating a fast day for the Holocaust. He answered that small minded men think they are on a level of the earlier generations who were authorized to establish new takanos. If I’m remembering correctly, the Chazon Ish concluded by writing something like silence with regard to such ideas would be the prudent course of action.
The frum oilam in E.Y. differentiates between the soldiers on an individual level and the IDF on the institutional level. While most if not all people ask Hashem in their tefilos to protect all Yidden from harm, which of course, includes soldiers, police officers, etc. Asking Hashem to protect the IDF? That’s going a bit too far. And who knows if it’s such a good thing altogether? We all need Hashem’s chessed and protection, including the soldiers. This is what we ask for, and this is enough.
For the record, only about 1 in 6 soldiers are exposed to danger on an ongoing basis. The rest are “jobniks” who, while (mostly) performing some useful purpose, are not exactly “giving their life on the line every day to protect every Yid,” etc. OK, under current circumstances today maybe it’s a bit more than 1 in 6, but still far from everyone or even most of them. During wartime, C”V, everyone says Tehilim and learns for the hatzola of the Yishuv and Ha’am ha’yosheiv be’Tzion.
This is something for which everyone can and should daven: that Hashem should protect us from danger and from any further tzoros.