War Before the Coming of Moshiach

הֵאָסְפוּ וְאַגִּידָה לָכֶם, אֵת אֲשֶׁר-יִקְרָא אֶתְכֶם, בְּאַחֲרִית הַיָּמִים
"Gather together and I will tell you what will happen in the End of Days", Genesis 49:1

בַּצַּר לְךָ--וּמְצָאוּךָ, כֹּל הַדְּבָרִים הָאֵלֶּה; בְּאַחֲרִית, הַיָּמִים, וְשַׁבְתָּ עַד-יְהוָה אֱלֹהֶיךָ, וְשָׁמַעְתָּ בְּקֹלוֹ
When you are in distress, when all these things have come upon you, in the end of days, if you will return to HaShem, and you will listen to His voice" Deuteronomy 4;30

The Third World War - The last war before the coming of our Moshiach: Gog uMagog (PDF)