If you have a bit of interior window ledge and space on sides and top, you can have a wooden frame made to fit. Staple wire mesh on the outside, and staple screen on the inside. Install a couple of cheap drawer pulls, so you can easily remove your new screen. Good luck!
What needs to be done, is to start a dam on the Artibonito River. Said river is born in the DR, yet provides a large percentage of Haiti's water. If this is about water, it's time to hit them where it hurts. If the DR can't stop them from works on their side, then Haiti can't stop the DR. Build...
Don't know if this is related to the Kenyan intervention, but.... My wife works at a Cabarete supermarket, she reports a large number of Kenyan "tourists" making purchases in the last week.
Brisket is available here, the butcher calls it pecho. Salt it with 2.5 % of its weight using sea salt. Put it in a large ziplock, in your refrigerator. Turn over each day. After 12 days, rinse in fresh water, boil and enjoy. Could not be easier.