Editing Combat knife

{{Era|Human|UNSC|HCW|Post}}
{{Wikipedia}}
{{Weapon
|image=[[File:Combat Knife.png|120px]]
|name=Combat knife
|manufacturer=Humans
|model= 
|type= Melee weapon
|cost=
|length-title= Blade length
|length= Varies:
*UNSC standard issue: {{Convert|20|cm|ftin|sp=us}} 
|ammotype=
|operation=
|rate=
|accuracy=
|range= Close-quarters
|service=[[Insurrection]] <br>
[[Human-Covenant War]] <br>
[[Post-Covenant War conflicts]]
|role= Hand-to-hand combat
|affiliation= [[Human]]s
}}

A '''combat knife''' is a multi-purpose knife designed for military use. Several types of combat knives are used by the [[United Nations Space Command]], as well as other [[human]] organizations. All UNSC troops are issued a combat knife for field and utility uses, as well as a backup weapon for desperate close-combat situations.

==Design details==
One version of the UNSC's multi-purpose combat knife has a 20-centimeter (7.9 in) blade made of high carbon steel, an anti-flash, non-reflective [[titanium]] carbide coating, edge coated for corrosion resistance and is {{Convert|43.3|cm|ftin|sp=us}} long when sheathed. It is also balanced for throwing.<ref>'''[[Halo: The Fall of Reach]]''', ''page 80''</ref> The [[Spartan-III]]s' standard-issue combat knife features a self-sharpening blade made of a hyperdense material.<ref>'''[[Halo Mythos]]''', ''page 77''</ref> Modern UNSC combat knives are made of strong enough material to pierce a [[Spartan]]'s helmet,<ref>'''[[Halo Reach]]''' - [[Multiplayer]]</ref> and the hull of a [[Lich]].<ref>'''[[Halo 4]]''', campaign level, ''[[Shutdown]]''</ref>

Some soldiers in service with the UNSC carry a combat knife of their own design or choice. [[Faison|Major Faison]] had a very large knife that he kept sheathed at his ankle, with the words "Bug-Hunter" engraved on the blade.<ref>'''Halo: The Cole Protocol''', ''page 104''</ref> [[Emile-A239]] used a large [[Wikipedia:Kukri|kukri]] for his weapon of choice.<ref>'''[[Halo: Reach]]''', campaign level ''[[Noble Actual]]''</ref> [[Roland (Spartan-III)|Roland]], a member of the SPARTAN-III program's [[Headhunters]] division, also used a custom combat knife.<ref>'''[[Halo: Evolutions]]''', "[[Headhunters (short story)|Headhunters]]", ''page 158''</ref>

The placement of the combat knife sheath varies depending on the combat uniform and individual loadout, and may be kept, for example, on the shoulder with the handle pointing downward, sideways on the lower back, or on the side of the boot.<ref>'''[[Halo: The Cole Protocol]]''', ''page 128''</ref> Some [[SPARTAN-IV program|Spartan-IVs]] keep their knives sheathed in a wrist compartment.<ref>'''[[Halo: Escalation]]''', ''[[Halo: Escalation Issue 3|Issue #3]]''</ref>

===Variants===
*'''M11 combat knife''': A combat knife used by [[Spartan-IV]]s.<ref>'''ThreeA''': ''[[:File:ThreeA Recruit 1.jpg|Promotional image]]''</ref>

==History==
Knives have been used in battle almost since the dawn of warfare, first as a sharp piece of rock, and then when metal proved effective during a period of time where projectile weapons were not readily available. Even after the invention of the firearm, knives were still used as bayonets for close-quarters-combat and in the event of an enemy's cavalry charge. As more modern times came about during the 21st century, combat knives became almost exclusively used for utility purposes in the field, and were only used as a weapon during desperate situations, simply due to the fact that they were impractical for use during combat in most situations due to firearms and other advanced weaponry.

By the 26th century, the UNSC still use knives in their operations, showing that such an easily accessible and created weapon and tool still runs strong even thousands of years later. Even the Covenant use knives; the Jiralhanae use their [[Jiralhanae combat knife|own combat knives]] as well as a multitude of bayonet-like blades. The Sangheili sometimes use [[curveblade]]s, which inspired the design of the [[Type-1 energy sword]]. The [[blamite]]-bladed [[energy cutlass]] is an analogous weapon used by the [[Kig-Yar]].<ref>'''[[Halo Encyclopedia]]''', ''page 329''</ref><ref>'''[[Halo: Contact Harvest]]''', ''page 125''</ref>

==Trivia==
{{Linkbox|gallery=yes}}
*[[Fred-104]] possesses particular skill with combat knives, and it can be interpreted that he has a liking for their use.<ref>'''[[Halo: First Strike]]''', ''page 2'' (2003 edition); ''page 11'' (2010 edition)</ref><ref>'''[[Halo Legends]]''', ''[[The Package]]''</ref>
*When performing an [[assassination]], a second knife spawns out of nowhere. This can be seen in Theater: despite using a knife to assassinate your opponent, it still appears sheathed on your chest.
*In ''Halo: Reach'', the Security armor permutation for the right shoulder has a kukri on it. However, if a player equips it, there will still be a standard combat knife on your chest and the kukri will remain unused during assassinations.
*In ''Halo: Reach'', should the sheathed knife be moved by any chest permutations, the player will still sheath the knife in the default position (this is most noticeable with chest pieces such as Tactical/Patrol).
{{Clear}}
==Gallery==
<gallery>
File:ODST Knife.jpg|A combat knife holstered on an ODST's shoulder from ''[[Halo: Landfall]]''.
File:HR-CurvedCombatKnife-Replica.jpg|A replica of a curved combat knife created by [[Weta Workshop]].
File:Buck Knife.png|Edward Buck wielding a combat knife as he is about to stab a [[Jiralhanae Chieftain]] in the neck, in ''[[Halo 3: ODST]]''.
File:ODST-BuckKnife.png|Detail of [[Edward Buck]]'s combat knife.
File:Fred Combat Knives Halo Legends.jpg|[[Fred-104]] holding a pair of combat knives, his weapons of proficiency, in ''[[The Package]]''.
File:TML - McCraw n Knife.png|[[James MacCraw]] holding his combat knife in ''[[The Mona Lisa]]''.
File:Headhunters - Knife.png|[[Jonah]] wielding his combat knife in ''[[Headhunters (story)|Headhunters]]''.
File:Halo Reach Assassination.png|A combat knife being used in an assassination in ''[[Halo: Reach]]''.
File:Grenadier (Noble Team).jpg|[[Emile-A239]] sharpening his [[Wikipedia:Kukri|kukri]].
File:Combat Knife.jpg|A Spartan-III player assassinating a Sangheili in the ''[[Halo: Reach Multiplayer Beta]]''.
File:Reach 1504643 Full.jpg|An in-game screenshot of a combat knife used by a Spartan-III.
File:HR-SpartanKnife.png|Detail of a combat knife and its scabbard in ''Halo: Reach''.
File:HR-Kukri_Sheath.png|Detail of Emile-A239's kukri knife and its sheath.
File:Halo4assassination.jpg|A [[Spartan-IV]] about to kill an enemy with his M11 combat knife in ''[[Halo 4]]''.
File:Regicide13.jpg|An M11 combat knife in ''Halo 4''.
File:H4-Lich knife.png|John-117 using his combat knife to grapple onto the hull of a [[Type-56 Lich]].
File:HE Scruggs killed.jpg|[[Sarah Palmer]] killing [[Vladimir Scruggs]] with a combat knife in ''[[Halo: Escalation]]''.
File:H2A ODST-CombatKnife.png|A combat knife holstered on an ODST's back in ''[[Halo 2: Anniversary]]''.
File:HCS Trailer - Assassination.png|A Spartan-IV using a combat knife on an opponent in the [[HCS]] season 2 trailer.
File:H5G-LockevsJul1.png|[[Jameson Locke]] killing [[Jul 'Mdama]] with a combat knife in ''[[Halo 5: Guardians]]''.
File:HTfS - Canon Fodder preview.jpg|John-117 killing a Sangheili Storm with a combat knife in ''[[Halo: Tales from Slipspace]]''.
File:HW2-Knivesstilldonothing.png|[[Douglas-042]]'s combat knife embedded in [[Atriox]]'s power armor in ''[[Halo Wars 2]]''.
File:HRoa 1 Showdown.png|Sergeant [[Kress]] using a combat knife in a final showdown with Atriox in ''[[Halo: Rise of Atriox]]''.
</gallery>

==List of appearances==
{{Col-begin}}
{{Col-2}}
*''[[Halo: The Fall of Reach]]'' {{1st}}
*''[[Halo: The Flood]]''
*''[[Halo: First Strike]]''
*''[[Halo 2]]''
*''[[Halo: Ghosts of Onyx]]''
*''[[Halo 3]]''
*''[[Halo: The Cole Protocol]]''
*''[[Halo Wars]]''
*''[[Halo 3: ODST]]''
*''[[Halo Legends]]''
**''[[Homecoming]]''
**''[[The Package]]''
*''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''
**''[[The Mona Lisa]]''
**''[[Headhunters (short story)|Headhunters]]''
*''[[Halo: Reach]]''
*''[[Halo: Fall of Reach]]''
**''[[Halo: Fall of Reach - Invasion|Invasion]]''
{{Col-2}}
*''[[Halo 4: Forward Unto Dawn]]''
*''[[Halo 4]]''
**''[[Spartan Ops]]''
*''[[Halo: Escalation]]''
*''[[Halo 2: Anniversary]]''
**''[[Terminal/Halo 2: Anniversary|Terminals]]''
*''[[Halo: New Blood]]''
*''[[Halo: Last Light]]''
*''[[Halo 5: Guardians]]''
*''[[Halo: Shadow of Intent]]'' {{Mo}}
*''[[Halo Mythos]]''
*''[[Halo: Tales from Slipspace]]''
**''[[On the Brink]]''
*''[[Halo: Smoke and Shadow]]''
*''[[Halo Wars 2]]''
*''[[Halo: Retribution]]''
*''[[Halo: Rise of Atriox]]''
{{Col-end}}

==Sources==
<references/>
{{Melee Weapons}}
{{Human sidearms}}

[[Category:UNSC infantry weapons]]