Military doctrine
Auftragstaktik encourages commanders to exhibit initiative, flexibility and improvisation while in command.

India: The current combat doctrine of the Indian Army is based on the effective combined utilization of holding formations and strike formations. In the case of an attack, the holding formations would contain the enemy and strike formations would counter-attack to neutralize enemy forces. In the case of an Indian attack, the holding formations would pin enemy forces down whilst the strike formations attack at a point of Indian choosing.
India's nuclear doctrine follows the policy of credible minimum deterrence, No first strike, No use of nuclear weapons on Non-nuclear states and Massive nuclear retaliation in case deterrence fails.
India has recently adopted a new war doctrine known as "Cold Start" and its military has conducted exercises several times since then based on this doctrine. "Cold Start" involves joint operations between India's three services and integrated battle groups for offensive operations. A key component is the preparation of India's forces to be able to quickly mobilize and take offensive actions without crossing the enemy's nuclear-use threshold. A leaked US diplomatic cable disclosed that it was intended to be taken off the shelf and implemented within a 72-hour period during a crisis.

Israel: 

Strategic doctrine: Israel's military doctrine is formed by its small size and lack of strategic depth. To compensate, it relies on deterrence, including through a presumed nuclear weapons arsenal. It tries to overcome its quantitative disadvantage by staying qualitatively superior. Its doctrine is based on a strategy of defense but is operationally offensive, by pre-empting enemy threats and securing a quick, decisive victory if deterrence fails. Israel maintains a heightened state of readiness, advanced early warning systems, and a robust military intelligence capability to ensure attackers cannot take advantage of Israel's lack of strategic depth. Early warning and speedy victory is also desired because the Israel Defense Forces rely heavily on reservists during major wars; lengthy mobilization of reservists is costly to the Israeli economy. Israeli doctrine is constructed with the assumption that Israel would be largely self-sufficient in its war-fighting, without nearby allies to assist.
Israel's emphasis on operational offense was espoused by its first prime minister, David Ben-Gurion, as early as 1948 (during the  1948 Arab–Israeli war):

If [the Arabs] attack us as they did this time, we shall transfer the war to the gates of their country. ... We do not intend to conduct ... a static defensive war at the venue where we were attacked. If they attack us again, in the future, we want the war to be waged not in our country, but in the enemy's country, and we want to be not on the defensive but on the attack.
Yitzhak Rabin, who was Chief of the IDF Staff during the Six-Day War, offered a similar explanation for Israel's pre-emptive beginning to the war:

The basic philosophy of Israel was not to initiate war, unless an act of war was carried out against us. We then lived within the lines prior to the Six-Day War, lines that gave no depth to Israel—and therefore, Israel was in a need, whenever there would be a war, to go immediately on the offensive—to carry the war to the enemy's land.

Tactical doctrine: IDF command has been decentralized since the early days of the state, with junior commanders receiving broad authority within the context of mission-type orders. Israeli junior officer training has emphasized the need to make quick decisions in battle to prepare them appropriately for maneuver warfare.

Russia and the Soviet Union: The Soviet meaning of military doctrine was very different from U.S. military usage of the term. Soviet Minister of Defence Marshal Andrei Grechko defined it in 1975 as "a system of views on the nature of war and methods of waging it, and on the preparation of the country and army for war, officially adopted in a given state and its armed forces".
In Soviet times, theorists emphasised both the political and "military-technical" sides of military doctrine, while from the Soviet point of view, Westerners ignored the political side. However, the political side of Soviet military doctrine, Western commentators Harriet F Scott and William Scott said, "best explained Soviet moves in the international arena".
Soviet (and contemporary Russian) doctrine emphasizes combined-arms warfare as well as operational warfare. It emphasizes the initiation of military hostilities at a time, date, and location of its choosing on terms of its choosing and the extensive preparation of the battlespace for operations.
Former Soviet/Russian doctrine sacrifices tactical flexibility and adaptability for strategic and operational flexibility and adaptability; tactical personnel are trained as relatively inflexible executors of specific, detailed orders, while the operational-strategic level of Russian military doctrine is where most innovation takes place.
The Soviet response to problems of nuclear strategy began with classified publications. However, by 1962, with the publication in the Marshal of the Soviet Union Vasily Sokolovsky's volume, Military Strategy, the Soviets laid out their officially endorsed thoughts on the matter, and their ideas on how to cope with nuclear conflict.

Sweden: In the 2000s and early 2010s, the Moderate Party–led governments transformed the Swedish Armed Forces from a Cold War posture of defence to one of participation in international operations. The assumption was that Sweden's homeland would face minimal external threats. Supreme Commander Sverker Göranson estimates that as of 2014, Swedish forces could resist a limited enemy attack for only one week.
The annexation of Crimea by the Russian Federation and the subsequent Russian invasion of Ukraine has stirred debate within Sweden that a return to significant defensive forces and a closer alliance with NATO is necessary in the wake of Russia's actions in Ukraine.

United Kingdom: For some 280 years the British Army did not have a formal 'Military Doctrine', although a huge number of publications dealing with tactics, operations and administration had been produced. However, during his tenure as Chief of the General Staff (1985–89) General Sir Nigel Bagnall directed that British Military Doctrine was to be prepared, and tasked Colonel (later General) Timothy Granville-Chapman (an artillery officer who had been his Military Assistant in Headquarters 1st British Corps) to prepare it. The first edition of British Military Doctrine (BMD) was published in 1988. It led to the Royal Navy and Royal Air Force developing their own maritime and air-power doctrines. However, in 1996 the first edition of British Defence Doctrine (BDD) was published, drawing heavily on the BMD. The Army adopted BDD as their Military Doctrine. The fourth edition of BDD was published in 2011; it uses the NATO definition of doctrine.
NATO underpins the defence of the UK and its Allies, while also providing deployable expeditionary capabilities to support and defend UK interests further afield.  However, until recently, most NATO doctrine has been mirrored by equivalent, but different, national Joint Doctrines.  This has often caused a dilemma for UK Armed Forces committed to operations as part of a NATO-based coalition.
In 2012, the Chief of Defence Staff and Permanent Undersecretary for Defence issued direction on how the UK contribution to NATO could be improved, stating that 'We should use NATO doctrine wherever we can, and ensure coherence of UK doctrine with NATO wherever we cannot.'
The 2014 edition of Joint Doctrine Publication (JDP) 0-01 UK Defence Doctrine reflects this change in policy.
However, the British Army had formal publications for a long time, and these amounted to its doctrine. Field Service Regulations (FSR), on the Prussian pattern, were published in 1906 and with amendments and replacement editions lasted into the Second World War. They required each arm and service to produce their own specific publications to give effect to FSR. After the Second World War FSR were replaced by various series of manuals, again with specific training pamphlets for each arm and service. These deal with operational and tactical matters.
The current capstone publication for the army is Army Doctrine Publication Operations alongside maritime and air-power equivalents and joint warfare publications all under the umbrella of BDD. The four layers constituting "land doctrine" are summarised as:

British Defence Doctrine – provides philosophy
Joint (and Allied) Operational Doctrine and Capstone Environmental Doctrine (JDP 01 Joint Operations Archived 2011-04-14 at the Wayback Machine AJP-01 Allied Joint Operations Archived 2011-08-15 at the Wayback Machine ADP Operations – provides principles
Joint Functional and Thematic Doctrine such as JDP 5-00 Campaign Planning and JDP 3-40 Security and Stabalisation provide doctrine on specific areas or themes. JDP 5-00([2] Archived 2011-04-14 at the Wayback Machine) JDP 3-40([3] Archived 2011-05-16 at the Wayback Machine)
Army Field Manual (two volumes) – provides practices
Land component handbooks and special to arm publications – provide procedures
The Army Field Manual comprises Volumes 1 (Combined Arms Operations) in 12 parts led by "Formation Tactics" and "Battlegroup Tactics", and Volume 2 (Operations in Specific Environments) in 6 parts (desert, urban, etc.).
BDD is divided into two parts: "Defence Context" and "Military Doctrine". Defence Context deals with two matters. First, the relationship between Defence policy and military strategy, and—while highlighting the utility of force – emphasizes the importance of addressing security issues through a comprehensive, rather than an exclusively military, approach.