Question 723: These guys kill a lot of our people, and I think Buddha will forgive me

Adams watched as two soldiers pulled a prisoner out of a doorway at the end of the street. The soldiers then pushed and pulled what appeared to be a ___Y___in a plaid shirt, his arms tied behind his back. They escorted the man toward the spot where Adams and Vo Su were located.

"Eddie Adams said, 'I just followed the three of them as they walked towards us, making an occasional picture. When they were close - maybe five feet away - the soldiers stopped and backed away. I saw a man walk into my camera viewfinder from the left. He took a pistol out of his holster and raised it. I had no idea he would shoot. It was common to hold a pistol to the head of prisoners during questioning. So I prepared to make that picture - the threat, the interrogation. But it didn't happen. The man just pulled a pistol out of his holster, raised it to the ___Y___'s head and shot him in the temple. I made a picture at the same time.' "The prisoner fell to the pavement, blood gushing," Buell, quoting Eddie. "After a few more pictures of the dead man, Adams left.

THis picture went on to define the war __X__ and was voted as Life's 100 pictures that defined the 21st century.

ID X & Y

Question 628: If they don't lend their X, Take It

The incident that gave its name to the war had occurred in 1731 when the British brig Rebecca was boarded by the Spanish coast guard La Isabela, commanded by Julio León Fandiño. After boarding, Fandiño cut off the __X__ of the Rebecca's captain, __Y__, who had been accused of piracy. Fandiño told __Y__, "Go, and tell your King that I will do the same, if he dares to do the same." In March 1738, __Y__ was ordered to attend Parliament, presumably to repeat his story before a committee of the House of Commons. According to some accounts, he produced the severed__X__ when he attended, although no detailed record of the hearing exists. The incident was considered alongside various other cases of "Spanish Depredations upon the British Subjects," and was perceived as an insult to the honour of the nation and a clear casus belli.


Question:
1) ID X & Y/ The name of the war which ensued after this


Hint:

Question 615: Armageddon out of Here

Connect the 3 to a single entity.
#brownie points for how they connect as well.

1) This is the way the world ends

    This is the way the world ends

    This is the way the world ends

    Not with a bang but a whimper.

2)

3) 

Question 601.g: Smell of Napalm in the Morning

The basic premise of the project was to create a weapon capable of shooting a jet of flame high and wide enough to force incoming bomber pilots to either pull out of their dive or brave a pillar of flame potentially capable of damaging or destroying their plane.

The most effective was a design submitted by the __X__ car company, which fired eight gallons of a diesel oil/tar fuel mixture per second, igniting to produce a continuous gout of flame with a range of nearly 100 feet (30 m), which at its widest point was roughly 30 feet (10 m) in diameter. According to Gerald Pawle, an engineer working on the project, the __X__ flamethrower universally inspired both awe and horror in all staff officers invited to watch the demonstrations. Further refinements were made to the design which increased its effective range to 200 feet (61 m), though a much larger quantity of fuel was needed to maintain the flame for any significant period of time.


So Connect __X__ with the following: