Are there any special additions one can add to the shemoneh esrei on Yom Ha'atzmaut and Yom Yerushalayim? Is there any problem with saying these additions? Do any major shuls in America say them?
Here are two possible texts according to Nusach Eretz Yisrael (machon shilo).
I had also seen a longer text used in the Great Synagoge in Rome, but don't have an electronic text.
I would think that one could add them in either Shema Koleinu or Modim (maybe even Bonei Yerushalayim?) without concern, as long as the standard chatima is used.