As conflicts in the world proliferate, the feeling of uncertainty and insecurity increases. Look at how the conflict in Syria has sucked in several nations - each, of course, with its own agenda:

see
http://www.bbc.co.uk/news/world-middle-east-14703995.
Even the negotiated truce has not been completely successful, although it has permitted some aid to be delivered where greatly needed: see
http://www.bbc.co.uk/news/world-middle-east-35669523
Elsewhere conflicts continue: see
http://www.bbc.co.uk/news/world-middle-east-35678326
http://www.bbc.co.uk/news/world-middle-east-35687645
http://www.bbc.co.uk/news/world-africa-35688039
http://www.bbc.co.uk/news/world-africa-35521290

To initiate and maintain warfare requires an ample supply of munitions, and there are plenty of willing suppliers. The much increased trade in arms is symptomatic of increased tension, increasing preparedness and expanding military engagement: see

http://www.bbc.co.uk/news/world-asia-35628477
While some nations are reducing their imports, there are marked increases in some areas, including the Middle East.
Bible students have been expecting a build-up of arms and smaller nations demanding increased influence, because it was foretold over 2000 years ago!
9 ¶  Proclaim ye this among the Gentiles; Prepare war, wake up the mighty men, let all the men of war draw near; let them come up:
10  Beat your plowshares into swords, and your pruninghooks into spears: let the weak say, I am strong.
11  Assemble yourselves, and come, all ye heathen, and gather yourselves together round about: thither cause thy mighty ones to come down, O LORD.
12  Let the heathen be wakened, and come up to the valley of Jehoshaphat: for there will I sit to judge all the heathen round about.
13  Put ye in the sickle, for the harvest is ripe: come, get you down; for the press is full, the fats overflow; for their wickedness is great.
14  Multitudes, multitudes in the valley of decision: for the day of the LORD is near in the valley of decision.
15  The sun and the moon shall be darkened, and the stars shall withdraw their shining.
16  The LORD also shall roar out of Zion, and utter his voice from Jerusalem; and the heavens and the earth shall shake: but the LORD will be the hope of his people, and the strength of the children of Israel.
17  So shall ye know that I am the LORD your God dwelling in Zion, my holy mountain: then shall Jerusalem be holy, and there shall no strangers pass through her any more.
Joel 3
While the present build-up may be ostensibly to defeat terrorist groups, the increase in arms production and trading may be paving the way for the fulfilment of this prophecy and others which speak of the nations of the world sending their armed forces into Israel, to be defeated comprehensively and dramatically.
See Ezekiel 38&39 and Zechariah 14.
The outcome will be the reversal of the arms build-up, the conversion of weapons to peaceful and profitable uses, and Jerusalem the world centre of government and religion.
1 ¶  But in the last days it shall come to pass, that the mountain of the house of the LORD shall be established in the top of the mountains, and it shall be exalted above the hills; and people shall flow unto it.
2  And many nations shall come, and say, Come, and let us go up to the mountain of the LORD, and to the house of the God of Jacob; and he will teach us of his ways, and we will walk in his paths: for the law shall go forth of Zion, and the word of the LORD from Jerusalem.
3  And he shall judge among many people, and rebuke strong nations afar off; and they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up a sword against nation, neither shall they learn war any more.
4  But they shall sit every man under his vine and under his fig tree; and none shall make them afraid: for the mouth of the LORD of hosts hath spoken it.
Micah 4
Where we are then depends on our response to God's Word now.