A team of six Indian Army mountaineers led by Lieutenant Colonel Ranveer Jamwal has successfully summitted Mount Everest (8848 metres) at dawn on 19th May 2016. 
•    Concurrently, the Lhotse Summit Team under Major Nooruddin Ahmed is attempting to summit Mount Lhotse, the fourth highest peak in the world at 8501 metres. 
•    The Indian Army climbers were amongst the initial lot of mountaineers to successfully climb Everest after a hiatus of two years as the peak was closed due to the devastation caused by the earthquake in Nepal last year.
•    The 30-member Indian Army’s Everest Massif Expedition 2016 was flagged off by Lt Gen MMS Rai, Vice Chief of the Army Staff, on 30th March, 2016. 

•    Five members of the team will also be participating in the tough and intensive ‘Tenzing Hillary Everest Marathon’ on 29th May 2016, considered to be one of the toughest trail marathons in the world.

•    A two-hour flight from Sydney to London is a step closer to reality after the latest successful test Wednesday of hypersonic technology in the Australian desert.
•    A joint US-Australian military research team is running a series of 10 trials at the world's largest land testing range, Woomera in South Australia, and at Norway's Andoya Rocket Range.
•    Scientists have said hypersonic technology could cut travelling time from Sydney to London to as little as two hours for the 17,000-kilometre (19,540-mile) flight.
•    Hypersonic flight involves travelling at more than five times the speed of sound (Mach 5).
•    Scientists involved in the programme -- called Hypersonic International Flight Research Experimentation (HIFRE) -- are developing an engine that can fly at Mach 7
•    Each test builds on previous ones, with the latest used to measure heat on the outside of a vehicle in hypersonic flight, Smart said.
•    The next test, scheduled for 2017, would involve the scramjet engine separating from the rocket booster and flying on its own, he added.
•    The first test was conducted in 2009 with the project expected to be completed in 2018.

India on 15 May 2016 successfully test fired an indigenously developed Advanced Air Defence interceptor missile, Ashwin. 
•    It was launched from the complex of Abdul Kalam Island (formerly known as Wheeler Island) off Odisha coast.
•    Ashwin is capable of destroying any incoming hostile ballistic missile.
•    Indigenously developed by DRDO, the ADD interceptor missile isa 7.5-meter long single-stage solid rocket propelled guided missile equipped with a navigation system, a hi-tech computer and an electro-mechanical activator.
•    It weighs around 1.2 tonnes and has a diameter of less than 0.5 meter.
•    With this, India became the fourth country to have successfully developed this anti-ballistic missile system. 
•    The other three are United States, Russia and Israel. 
•    This is inspired by late President of India Shri Abdul Kalam
•    This interceptor missile is enough to destroy various demo.

India and the United States (US) on 16 May 2016 held the first round of discussions under the recently-constituted Maritime Security Dialogue. The dialogue was held between the officials of Defence and External Affairs ministries and their US counterparts.
The Indian side was represented by Shambhu Kumaran, Joint Secretary in-charge of Planning and International Cooperation (PIC) and Munu Mahawar, Ministry of External Affairs Joint Secretary, Americas (AMS). 
While, David Shear, Assistant Secretary of Defense for Asian and Pacific Security Affairs; Manpreet Anand, Deputy Assistant Secretary of State for South and Central Asian Affairs and Vice Admiral Aucoin, Commander, US Seventh Fleet, were the officials from the American side.
•    Both the sides discussed various issues including Asia-Pacific maritime challenges, naval cooperation, and multilateral engagement.
•    They also agreed for the white shipping technical arrangement to improve data sharing on commercial shipping traffic.
•    Navy-to-Navy discussion on submarine safety and anti-submarine warfare was also undertaken.
•    The dialogue was one of the several new initiatives agreed between Indian Defence Minister Manohar Parrikar and his US counterpart Ashton Carter during the latter’s visit to India in April 2016.
•    It was created as a part of the maritime security objectives under the India-US Joint Strategic Vision for the Asia-Pacific and Indian Ocean Region.
•    The newly constituted Maritime Security Dialogue between India and US is a sign of the growing relations between our two countries.
•    The dialogue comes as India and the US are cautiously eyeing the rise of China. 
•    The US wants its regional allies to adopt a more united stance against China over the South China Sea, where tension has spiked since China's construction of artificial islands with facilities for military use.

Indian Air Force has launched its Electronic Maintenance Management System (e-MMS) Project, an automated military maintenance system. 
•    It was inaugurated by the Chief of Air Staff, Air Chief Marshal Arup Raha at the Air Force Station in Pune, Maharashtra. 
•    The e-MMS project is one of the largest Maintenance Repair Overhaul (MRO) IT implementation in the world. The project has been designed and developed by the Indian IT giant Wipro. 
•    IAF had signed the contract for the project e-MMS with Wipro as a System Integrator (SI) in 2013. 
•    The e-MMS system has a central console that will help IAF to get rid of paper works and heavy logbooks. It seeks to seamlessly connect squadrons, wings, commands, and Air Headquarters after its implementation. 
•    It will transform IAF’s paper-based legacy maintenance system to an online system as it will be implemented in IAF’s hierarchy and functioning. 

On 11 May 2016 Indian Navy on decommissioned its fleet of iconic Sea Harriers. 
They were replaced with new generation MIG-29 K fighters in a ceremony on INS Hansa near Vasco.
The function was presided over by the Chief of Naval Staff Admiral RK Dhowan.
•    The de-inducted fighter aircrafts, the Naval Air Squadron 300 - INAS 300, were popularly known as 'white tigers'.
•    Designed and manufactured by British Aerospace, Sea Harrier is a naval Short-Vertical Take-Off and Landing Jet Fighter, used for both reconnaissance and strike.
•    The aircraft, developed by the British in the 1960s, was used by the British during the Falklands War, both Gulf Wars, and during the NATO intervention in Bosnia and Herzegovina.
•    The retired aircraft will be put on display in museums.
•    The newly inducted MIG 29 Ks will be operational from INS Vikramaditya aircraft carrier.
•    Presently 45 MIG 29k are being introduced

On 2 May 2016 US Navy tested the world's largest unmanned surface vessel named Sea Hunter in San Diego.
•    It is a self-driving 132-foot ship able to travel up to 10000 nautical miles.
•    It is designed to travel thousands of miles out at sea without a single crew member on board.
•    The Pentagon's research arm, the Defense Advanced Research Projects Agency (Darpa) developed the ship with Virginia-based Leidos.
•    The ship is powered by two diesel engines.
•    It is a 132ft-long (40-metre) unarmed prototype ship.
•    The ship underwent two years of testing which includes verifying that it can safely follow international norms for operating at sea.
•    It is the naval equivalent of Google's self-driving car.
•    It marks the first step toward sending unmanned cargo vessels between countries, according to military officials, who showed off the ship in San Diego today before it was put in the water.
•    The Pentagon's research arm, the Defense Advanced Research Projects Agency (Darpa) developed the ship along with Virginia-based Leidos. 
•    Darpa will test it in conjunction with the Navy over the next two years off California's coast. 
•    The tests will largely focus on its ability to react on its own to avoid collisions with seafaring traffic.
•    During the testing phase, the ship will have human operators as a safety net, but once it proves to be reliable, the autonomous surface vessel will maneuver itself — able to go out at sea for months at a time.

On 5 May 2016 Goa Shipyard Limited (GSL), launched Indian Coast Guard Ship (ICGS) Shaurya at Vasco. 
This 105-metre new generation OPV that was launched by the Governor of Goa, Mridula Sinha will be delivered to the Coast Guard after sea trials are completed. 
•    The vessel is capable of cruising at a speed of 23 knots and has a range of 6000 nautical miles.
•    It will be fitted with state-of-the-art machinery like the integrated machinery control system and integrated bridge system.
•    The vessel carries four boats for boarding party operations.
•    One 30 mm gun and two 12.7 mm guns associated with fire control system form the main weaponry package.
•    The indigenously designed ship is capable of search and rescue operations, pollution control and external firefighting.
GSL chairman and managing director Shekhar Mital said that all the six ships would be delivered to the Coast Guard by 2017.

Vice Admiral Sunil Lanba, got appointed as the next Chief of the Naval Staff on 5 May 2016. 
•    He will assume the charge on 31 May 2016 as the 23rd chief of Indian Navy .
•    He will succeed present Navy Chief Admiral Robin K. Dhowan.
•    He was commissioned into the Executive Branch of Indian Navy on 1 January 1978.
•    His sea Command includes commanding the minesweeper INS Kakinada, frigate INS Himgiri and Executive Officer of INS Viraat, the aircraft carrier.
•    Before FOC-in-C, Western Naval Command, he was FOC-in-C, Southern Naval Command, 
•    He was also the Vice Chief of the Naval Staff and Commandant, National Defence College.
•    He is a qualified specialist in navigation and direction course.
•    He attended the course at the Royal College of Defence Studies, UK.
He was Born on 17 July 1957,  and has been recipient of Param Vishist Seva Medal and Ati Vishist Seva Medal.

Indian Naval Ships Veer and Nipat got decommissioned in Mumbai, Maharashtra. 
•    The decommissioning ceremony of these ships was held in the presence of Vice Admiral Sunil Lanba, Flag Officer Commanding-in-Chief Western Naval Command. 
•    Both the ships belonged to the 1241 RE class missile vessels. 
•    They have completed 29 and 28 years of commissioned service respectively. 
•    In their service, they have participated in numerous operations and successfully completed many deployments. 
•    They were used during the Operations Vijay (1961) &  Parakram (2001–2002) .
•    The Indian Navy  is the naval branch of the Indian Armed Forces. 
•    The President of India serves as Supreme Commander of the Indian Navy. 
•    The Chief of Naval Staff (CNS), usually a four-star officer in the rank of Admiral, commands the navy. 
•    The Indian Navy is the fifth largest in the world.