Thematic Bible: Nations not warring against each other anymore

The word that Isaiah the son of Amoz saw in a vision, concerning Judah and Jerusalem. It shall come to pass in the last days that the mount of the house of the LORD, shall be set in the top of the mountains, and shall be lifted up above the hills: and all nations shall resort thereto. And much people shall go and say: come, and let us go up to the hill of the LORD and unto the house of the God of Jacob: that he may teach us his ways, and that we may walk in his paths. For out of Zion shall come the law, and the word of God out of Jerusalem. read more.
And he shall be judge among the heathen and tell many nations their faults. And they shall turn their swords into mattocks and their spears into scythes. One nation shall not lift up a sword against another, neither shall they teach to war any more.

But in the latter days it will come to pass, that the hill of the LORD's house shall be set up higher than any mountains or hills: Yea, the people shall flow unto it, and the multitude of the Gentiles shall haste them thither, saying, "Come, let us go up to the hill of the LORD, and to the house of the God of Jacob: that he may teach us his way, and that we may walk in his paths." For the law shall come out of Zion, and the word of God from Jerusalem; And shall give sentence among the multitude of the Heathen and reform the people of far countries: so that of their swords they shall make plowshares, and scythes of their spears. One people shall not lift up a sword against another, yea they shall no more learn to fight. read more.
But every man shall sit under his vineyard and under his fig tree, and no man to fray him away: for the mouth of the LORD of Hosts hath spoken it. Therefore, whereas all people have walked every man in the name of his own god, we will walk in the name of our God for ever and ever.