It is March and the lovely EnigMarch people have challenged puzzle designers to write a puzzle inspired by today's word: "hollow". Hmm, does "hollow" have any interesting synonyms? Oh yeah, gulf.

Oh no! The USA clown President Trump (egged on by his buffoonish adviser Elon Musk) wants to rename The Gulf of Mexico to The Gulf of America. And he throws a tantrum whenever anyone points out how stupid that is.

I looked through a bunch of Wikipedia pages to find other The Thingy of Other Country things he might want to rename next. We already filled in MEXICO below. Fill in the others and when you're done, the circled letters spell out a geographical feature that might be appropriate to name after America soon.

The Gulf of America	M E X I Ⓒ O	Better than "The Gulf of SpaceX Debris," I guess
The Penguins of America	_ _ _ _ _ _ _ _ _◯	TV show maybe set in Tuxedo Park or something
The Times of America	_ _ _ _◯	Home of the prestigious Cricketer of the Year awards
The Prince of America	_ _ _ _◯	Maybe Moses lived in Utah at some point (double-check this)
The Russian invasion of America	_ _ _ _ _ _◯	Might be a sore point, hmm.
The 2003 invasion of America	_◯_ _	Makes more sense; USA really had WMDs at the time

Nations: Egypt, India, Iraq, Madagascar, ~~Mexico~~, Ukraine

Some hints, rot-13'd:

Uzz, zbfg bs gurfr pbhagevrf unir qvssrerag ahzoref bs yrggref.
Gur Cevapr bs Rtlcg jnf n Qernzjbexf zbivr. Gur Crathvaf bs Znqntnfpne jnf n Qernzjbexf GI fubj. Pbafvfgrag!
Pevpxrg'f xvaq bs n ovt qrny va Vaqvn, V guvax?

Puzzle solution, rot-13'd:

thys / zrkvPb / Orggre guna "Gur Thys bs FcnprK Qroevf," V thrff
crathvaf / znqntnfpnE / GI fubj znlor frg va Ghkrqb Cnex be fbzrguvat
gvzrf / vaqvN / Ubzr bs cerfgvtvbhf Pevpxrgre bs gur Lrne njneqf
cevapr / rtlcG / Terng frggvat sbe byq Puevfgvna fgbel, whfg nfx Wbua Fzvgu
ehffvna vainfvba / hxenvaR / Batbvat fvapr 2014
2003 vainfvba / vEnd / Znxrf zber frafr, HFN unq JZQf ng gur gvzr