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![Russia Offers India Three Refurbished Kilo-Class Submarines Russia Offers India Three Refurbished Kilo-Class Submarines](https://thediplomat.com/wp-content/uploads/2020/04/sizes/thumbnail/thediplomat-2020-04-02.jpeg)
Russia Offers India Three Refurbished Kilo-Class Submarines
By Franz-Stefan Gady
The Indian Navy is reportedly considering three refurbished Kilo-class boats from Russia.
![Japan Commissions First Soryu-Class Attack Sub Fitted With Lithium-Ion Batteries Japan Commissions First Soryu-Class Attack Sub Fitted With Lithium-Ion Batteries](https://thediplomat.com/wp-content/uploads/2020/03/sizes/thumbnail/thediplomat-2020-03-05.png)
Japan Commissions First Soryu-Class Attack Sub Fitted With Lithium-Ion Batteries
By Franz-Stefan Gady
The Japan Maritime Self Defense Force’s latest diesel-electric attack submarine was commissioned on March 5.
![India’s New Attack Subs to Be Fitted With Imported Air Independent Propulsion System India’s New Attack Subs to Be Fitted With Imported Air Independent Propulsion System](https://thediplomat.com/wp-content/uploads/2018/03/sizes/thumbnail/thediplomat-first_torpedo_firing_trials_of_ins_kalvari_s50_-_1.jpg)
India’s New Attack Subs to Be Fitted With Imported Air Independent Propulsion System
By Franz-Stefan Gady
The Indian Navy has reportedly abandoned plans to install an indigenous air-independent propulsion system on Project-75 I subs.
![Second Project 636.3 Sub for Russian Pacific Fleet to Be Launched on December 26 Second Project 636.3 Sub for Russian Pacific Fleet to Be Launched on December 26](https://thediplomat.com/wp-content/uploads/2019/12/sizes/thumbnail/thediplomat-2019-12-04-4.jpg)
Second Project 636.3 Sub for Russian Pacific Fleet to Be Launched on December 26
By Franz-Stefan Gady
The Admiralty shipyard will float out the second Project 636.3 Kilo-class attack submarine destined for service in the Pacific Fleet on December 26.
![First Project 636.3 Kilo-Class Attack Sub to Enter Service With Russia’s Pacific Fleet This Month First Project 636.3 Kilo-Class Attack Sub to Enter Service With Russia’s Pacific Fleet This Month](https://thediplomat.com/wp-content/uploads/2016/09/sizes/thumbnail/thediplomat_2016-09-08_16-02-31.jpg)
First Project 636.3 Kilo-Class Attack Sub to Enter Service With Russia’s Pacific Fleet This Month
By Franz-Stefan Gady
The diesel-electric attack submarine will be accepted for service in the Russian Pacific Fleet on November 25.
![Japan Launches Second Soryu-Class Attack Sub Fitted With Lithium-Ion Batteries Japan Launches Second Soryu-Class Attack Sub Fitted With Lithium-Ion Batteries](https://thediplomat.com/wp-content/uploads/2019/11/sizes/thumbnail/thediplomat-p1742633.jpg)
Japan Launches Second Soryu-Class Attack Sub Fitted With Lithium-Ion Batteries
By Franz-Stefan Gady
The Toryu is the final boat of the Soryu-class of diesel-electric submarines and will be commissioned in 2021.
![South Korea’s Navy Receives Third Upgraded Chang Bogo I-Class Diesel Electric Submarine South Korea’s Navy Receives Third Upgraded Chang Bogo I-Class Diesel Electric Submarine](https://thediplomat.com/wp-content/uploads/2019/11/sizes/thumbnail/thediplomat-2019103101000555700022051.jpg)
South Korea’s Navy Receives Third Upgraded Chang Bogo I-Class Diesel Electric Submarine
By Franz-Stefan Gady
A South Korean ship maker delivered a retrofitted Chang Bogo I-class diesel-electric sub to the Navy on November 1.
![New Russian Attack Sub Enters Sea Trials New Russian Attack Sub Enters Sea Trials](https://thediplomat.com/wp-content/uploads/2016/09/sizes/thumbnail/thediplomat_2016-09-08_16-02-31.jpg)
New Russian Attack Sub Enters Sea Trials
By Franz-Stefan Gady
The first of six diesel-electric attack subs destined for Russia’s Pacific Fleet has entered state trials, according to a source.
![South Korea’s Navy Receives Upgraded Chang Bogo I-Class Diesel-Electric Attack Submarine South Korea’s Navy Receives Upgraded Chang Bogo I-Class Diesel-Electric Attack Submarine](https://thediplomat.com/wp-content/uploads/2016/03/sizes/thumbnail/thediplomat_2016-03-28_18-47-00.jpg)
South Korea’s Navy Receives Upgraded Chang Bogo I-Class Diesel-Electric Attack Submarine
By Franz-Stefan Gady
A South Korean shipbuilder handed over to the Navy a retrofitted Chang Bogo I-class diesel-electric sub earlier this week.
![India Launches 4th Kalvari-Class Attack Submarine India Launches 4th Kalvari-Class Attack Submarine](https://thediplomat.com/wp-content/uploads/2019/05/sizes/thumbnail/thediplomat-016kha.jpg)
India Launches 4th Kalvari-Class Attack Submarine
By Franz-Stefan Gady
India’s latest diesel-electric attack submarine was launched in Mumbai on May 6.
![Australia, France Sign Framework Agreement for $35.5 Billion Submarine Deal Australia, France Sign Framework Agreement for $35.5 Billion Submarine Deal](https://thediplomat.com/wp-content/uploads/2019/02/sizes/thumbnail/thediplomat-20190225_ng_asc_signing_002.jpg)
Australia, France Sign Framework Agreement for $35.5 Billion Submarine Deal
By Franz-Stefan Gady
The agreement provides a framework for collaboration on the Royal Australian Navy’s new attack submarine class.
![India’s Latest 2 Kalvari-Class Attack Subs Undergoing Sea Trials India’s Latest 2 Kalvari-Class Attack Subs Undergoing Sea Trials](https://thediplomat.com/wp-content/uploads/2018/03/sizes/thumbnail/thediplomat-first_torpedo_firing_trials_of_ins_kalvari_s50_-_1.jpg)
India’s Latest 2 Kalvari-Class Attack Subs Undergoing Sea Trials
By Franz-Stefan Gady
The second and third Kalvari-class submarines are undergoing sea trials. Both subs are expected to be commissioned this year.
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