The correct answer is war
The notion of war is related to terms such as combat, battle, fight, fight or confrontation. In general, all of these concepts are interchangeable and synonymous, although each has a specific use that is better suited to the case. For example, it is correct to speak of "combat between boxers", but not of "war between boxers".
War refers, in its most usual sense, to armed struggle or war conflict between two or more nations or bands. It implies the disruption of a state of peace and gives rise to a confrontation with all types of weapons and which usually causes a high number of deaths.
The dissolution of the Soviet Uniona occurred on 26 December 1991.
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They agreed that natural resources needed to be conserved for the future.
Answer:
I believe it's two, gunpowder and crossbow
Explanation:
The soonest realized crossbows were designed in the main thousand years BC, not later than the seventh century BC in old China, not later than the fourth century BC in Greece (as the gastraphetes).
Gunpowder was developed in China at some point during the main thousand years AD. The most punctual conceivable reference to gunpowder showed up in 142 AD during the Eastern Han administration when the chemist Wei Boyang, otherwise called the "father of speculative chemistry", expounded on a substance with black powder like properties.