Which of the following country conducted a Freedom of Navigation Operation (FONOP) in the Indian Ocean region when its warship ventured into India's Exclusive Economic Zone (EEZ) near Lakshadweep Islands without the latter's permission?

The concept of Freedom of Navigation Operations (FONOPs) is a critical aspect of international maritime law and geopolitics. FONOPs are military operations conducted by the United States to assert navigational rights and freedoms around the world. These operations are often conducted in areas where other countries claim excessive maritime rights, such as within Exclusive Economic Zones (EEZs).

The Exclusive Economic Zone (EEZ) is a maritime zone extending up to 200 nautical miles from a country's coastline. Within this zone, the coastal state has special rights regarding the exploration and use of marine resources, including energy production from water and the seabed. However, the EEZ does not grant the coastal state full sovereignty over the waters; instead, it allows for the freedom of navigation and overflight by other states.

The United States has been particularly active in conducting FONOPs to challenge what it perceives as excessive maritime claims by other countries. These operations are often controversial and can lead to diplomatic tensions. In the context of the Indian Ocean, the USA has conducted FONOPs near the Lakshadweep Islands, which are part of India's EEZ. The purpose of these operations is to assert the right of free navigation and to challenge any perceived overreach by India in its maritime claims.

It is important to understand that while the USA conducts FONOPs to assert navigational rights, other countries such as Russia, France, and Germany have different priorities and focus their naval activities in other regions. Russia's naval activities are more focused on the Arctic and the Mediterranean, while France's activities are centered around its territories in the Indian Ocean and the Mediterranean. Germany's naval activities are primarily focused on the North Atlantic and the Mediterranean.

Therefore, the correct answer is the USA, as it has conducted FONOPs in the Indian Ocean region near the Lakshadweep Islands, challenging India's maritime claims and asserting navigational rights.