Trace the evolution of India-Pakistan relations from the 1999 Kargil conflict to Operation Sindoor (2025). What does this trajectory reveal about India's evolving security doctrine?

The 1999 Kargil conflict, in which India recaptured infiltrated heights under Operation Vijay, set the template for the subsequent quarter-century: repeated Pakistan-backed provocation met by progressively firmer Indian responses, culminating in Operation Sindoor (May 2025) [1][2]. The trajectory is one of movement from prolonged restraint to calibrated punitive action.

Phase I — Restraint within the LoC (1999-2015)

• Kargil was fought under a self-imposed restriction: Indian forces did not cross the LoC, preserving escalation control while restoring territorial status quo [2].
• Response to later attacks stayed largely diplomatic and covert — isolating Pakistan internationally rather than striking militarily.

Phase II — Cross-border kinetic response (2016-2019)

• India began treating terror infrastructure as a legitimate military target, shifting the burden of escalation onto Pakistan.
• The redline moved from Indian territory to the terrorist camp itself, though strikes remained single-service and narrow in scope.

Phase III — Operation Sindoor and doctrinal consolidation (2025)

• Triggered by the Pahalgam attack (22 April 2025), in which terrorists religiously profiled and killed 26 civilians — an attempt to provoke communal division, not merely casualties [1].
• India struck nine terror camps across the LoC and deeper inside Pakistan, explicitly excluding Pakistani military establishments — officially framed as "focused, measured and non-escalatory" [1].
• Executed as a coordinated tri-services campaign relying substantially on indigenous platforms, linking counter-terror capability to Aatmanirbharta in defence [3][4].

What the trajectory reveals

The doctrine has evolved along three axes: from defensive holding to offensive denial; from single-service reaction to integrated, multi-domain response; and from imported hardware to home-grown strength [3][4]. Crucially, restraint has not been abandoned but relocated — India now strikes decisively while retaining escalation control through deliberate target selection.

The arc from Kargil to Sindoor thus reflects maturing strategic confidence rather than belligerence. Sustaining it requires that military capability remain paired with intelligence reform, LoC infrastructure, and diplomatic groundwork — so that deterrence rests on preparedness, not episodic retaliation.