Greece is pittin up a fence on its Turkish border - short notandum here. The EU isnae pleased (nae surprise there than) - the apparachniks will ay be howpin tae mak Turkey pairt of the EU, ower the deid body o democracy if necessar.
As that airticle mentions, there a razor wire fence alang the US Border wi Mexico (the drug lords tunnels unner it).
India recently completit its border fence forenent Bangladesh. It passes athort heavily populatit areas, an there accusations o brutality an a trigger-happy staun be the Indian forces. There a Marxist interpretation here (it's aa a capitalist conspiracy agin the peasant population ... aless o course it's a defensive meisure the likes o whit fowk hae biggit sin time immemorial). India has fences forbye agin Pakistan on the disputit N-W Frontier an agin Burma.
The Wikipedia airticle 'Separation Barrier' lists mony mair defensible barriers, includin thir anes, aa alang international borders:
Botswana agin Zimbabwe (juist tae keep kye fae wanderin in wi foot-an-mouth disease, ay ay);
Brunei agin Malaysia - there a Malaysian enclave that stauns atween twa bitties o territory that maks up Brunei - it's mair lik a Berlin or Belfast wa in scale, bit it is an international border. Seemilarly wi twae Spanish enclaves in Morocco;
Turkey in defence o territory held in Cyprus;
Iran wi Pakistan - this is a jynt meisure agin the Sunni Baluchi tribe that straddles the Border an harbours the Iranian Resistance Movement (or Jondullah resistance) - detailt discussion (sympathetic tae the Baluchis) here fae Nizamuddin Nizmani;
Israel wi the mair hostile o its neebors - we'll likely see the Border wi Egypt strenthent in the near future;
Uzbekistan agin Kyrgyzstan, athort the disputit ferm lan o the Ferghana Valley, an causin hardship tae the tribes at straddles the Border. Verra messy wi nummers o the twa ethnic groups aboot balanced in the Ferghana Valley. The Uzbeks an Kyrgyz are baith Sunni Muslims, bit the Uzbeks kythed in the Ferghana Valley as conquerors i the saxteenth century, pushin the Kyrgyz (thairsels fairly recent, likewise Turkic, stoory-feet) up intae the hills. The Uzbeks o Osh is strandit on the Kyrgyzstan side o the Border; there wis ethnic violence there in 2010; aabody blames ither, tak yer pick. Accoont here fae Christya Riedel o the findins o an international commission o enquiry;
South Korea agin the North;
Morocco in defence o territory held in the Western Sahara;
South Africa agin Mozambique an Zimbabwe.
Mair are planned.