"Blood and water can't flow together," India's Prime Minister says. This is no cliche - shared water resources are a key issue in the increasingly fraught relationship between India and Pakistan.
The South Asian neighbors have been at loggerheads since September 18, when four gunmen killed 18 Indian soldiers in an army base camp in Uri, a town in the disputed territory of Kashmir. New Delhi claimed the attackers were members of the Pakistan-based terror group Jaish-e-Mohammed, and accused Pakistan of involvement in the attack, a claim the Islamic republic denied.
Tensions were further inflamed on September 29, when India said it led "surgical strikes" on suspected terrorist bases in Pakistan-controlled Kashmir - strikes that Pakistan then insisted did not occur.
"While India has likely launched such raids in the past, those were kept under the cover of secrecy," Rebecca Keller, an analyst at geopolitical intelligence firm Stratfor, told CNBC. "This was the first time New Delhi openly announced such an action, which marks a break with precedent."
She forecast further strains on ties as Islamabad mulled an appropriate response to India's more open aggression.
"This means we may see an uptick in cross-border firing between both sides across the Line of Control," she said, referring to the de facto border through Kashmir that separates India and Pakistan.