More about Thailand to clear up posted misinformation. The Muslims are less than 3% of the population ... 96% Buddhist ..1% other... Muslim terrorism is only a problem in the extreme far south on the Malaysian border. There is next to NO problem with Muslims anywhere else in the entire country.
Thailand Visa - again - yes on most Visa types you have to leave the country several times a year - BUT this is not a big deal - Laos, Cambodia and Burma are only a bus ride away and most Expats make a ‘Visa Run’ with friends and make a sight seeing tour out of the effort.
I don’t recommend for anyone to consider living in places like Phuket and Pattaya and parts of Bangkok ... The ‘Tourista’ business has ruined it. If want a secluded site near (but not on the beach) I suggest Krabi, If you like more rural and mountains I suggest Khon Kaen, or Sakon Nakhon in the Isaan Region... You can rent land and farm.
There is exactly ONE Mosque in South Korea. Sure it can be seen for many miles because its atop the main hill in the Itawon portion of Seoul, but nothing is perfect