Answer:
Kailangan nating magtulungan at magkaisa para sa ikabubuti ng ating sariling bansa.
You need more information. The correct tone would be formal though
Machine Guns, The USS Monitor, Fenian Ram, The Maxim Gun, The First Bulletproff Vest Made Of Heavy Metal Plates, Gun Silencer, First Tanks, Nuclear Bombs, The Laser Is Demonstrated For The First Time,
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