Explanation

Senkaku is a disputed island between Japan and China located in the East China Sea.

the Diaoyu Islands in the People's Republic of China (PRC), and the Tiaoyutai Islands in the Republic of China (ROC or Taiwan)

The Senkaku Islands dispute, or Diaoyu Islands dispute, is a territorial dispute over a group of uninhabited islands 

Explanation

The Border between the United States and Canada is the longest in the world at almost 8,900 kilometres.

Explanation

The Golden Triangle is the area where the borders of Thailand, Laos, and Myanmar meet at the confluence of the Ruak and Mekong rivers.

Explanation

The Paracel Islands, also known as the Xisha Islands and the Hoang Sa Archipelago,

are a disputed archipelago in the South China Sea

Explanation

Northern Cyprus, officially the Turkish Republic of Northern Cyprus, is a de facto state that comprises the northeastern portion of the island of Cyprus.

Explanation

The Maginot Line  is a line of concrete fortifications, obstacles, and weapon installations built by France in the 1930s to deter invasion by Germany and force them to move around the fortifications.