Editing M109 howitzer (section)

===K56 ARV (ammunition resupply vehicle)===
The K56 ARV is an ammunition resupply vehicle based on the K55 platform.<ref>{{Cite web |title=한화디펜스 K56 |url=https://www.hanwha-defense.co.kr/kor/products/firearms-system-k56.do |access-date=2022-08-08 |website=www.hanwha-defense.co.kr |language=ko |archive-date=30 October 2021 |archive-url=https://web.archive.org/web/20211030085647/https://www.hanwha-defense.co.kr/kor/products/firearms-system-k56.do |url-status=dead }}</ref> Unlike the K10 ARV, the K56 can resupply both the K55A1 and the [[K9 Thunder]]. It has a 45.7% (4,197 out of 9,191 total parts) compatibility with the K55A1.<ref name="K56">{{Cite web |title=K55A1자주포의 단짝 K56탄약운반장갑차 실전 배치 |url=https://www.korea.kr/news/pressReleaseView.do?newsId=156437911 |access-date=2022-08-19 |website=www.korea.kr |language=ko}}</ref>

After 10 months of pilot experiment, the K56 program was authorized by the DAPPC (Defense Acquisition Program Promotion Committee) in February 2007.<ref>{{Cite web |title=제13회 방위사업추진위원회 개최 결과 |url=https://n.news.naver.com/mnews/article/234/0000000054?sid=123 |access-date=2022-08-12 |website=[[Naver News]] |language=ko}}</ref> In May 2007, the DAPPC allocated 16 billion KRW for research and development for 2008 to 2010, with plans to produce 520 vehicles between 2011 and 2020.<ref>{{Cite web |title=K-55용 탄약운반 장갑차 3년내 개발 |url=https://n.news.naver.com/mnews/article/001/0001624797?sid=100 |access-date=2022-08-19 |website=[[Naver News]] |language=ko}}</ref> In June 2008, Samsung Techwin was selected as the main contractor for the project.<ref name="K56 audit">{{Cite web |last=송 |first=한진 |title=李 국방, 제28회 방위사업추진위원회 주재 |url=https://n.news.naver.com/mnews/article/003/0002160787?sid=100 |access-date=2022-08-19 |website=[[Naver News]] |language=ko}}</ref> Later, the development completion schedule was delayed to 2011, while the total production amount was increased to 700 vehicles with a cost of 1.3 trillion KRW between 2012 and 2021.<ref>{{Cite web |date=2010-09-27 |title=자주포 탄약운반장갑차 개발, 엉터리 조사 토대로… 軍, 1조2000억원대 사업 강행 |url=https://news.kmib.co.kr/article/view.asp?arcid=0004155324 |access-date=2022-08-19 |website=[[Kukmin Ilbo]] |language=ko}}</ref>

In September 2010, the Board of Audit and Inspection claimed that the [[Republic of Korea Army|Army]] was biased during evaluation, and demanded re-analysis of the project regarding inefficiency of the system. The [[Defense Acquisition Program Administration]] (DAPA) ignored the Board and continued with the project while the Army purposely delayed complying.<ref name="K56 audit"/> In June 2011, the Ministry of Defense again ordered a reexamination of the resupply vehicle.<ref>{{Cite web |date=2011-06-14 |title=軍 중기 전력 13개 사업 재검토 |url=https://news.kmib.co.kr/article/view.asp?arcid=0005058445 |access-date=2022-08-19 |website=[[Kukmin Ilbo]] |language=ko}}</ref> DAPA instead requested a budget for the program, and the development was completed in October 2011.<ref>{{Cite web |last=홍 |first=장기 |title=탱크 여러대 잡는 '확산탄' 2014년 도입 |url=https://n.news.naver.com/mnews/article/086/0002058096?sid=102 |access-date=2022-08-19 |website=[[Naver News]] |language=ko}}</ref><ref name="K56"/> In July 2013, the DAPA announced the 1st production batch of the K56 between 2013 and 2015 for 65 billion KRW.<ref>{{Cite web |title=제 68회 방위사업추진위원회 개최결과 |url=https://www.korea.kr/news/pressReleaseView.do?newsId=155909059 |access-date=2022-08-10 |website=www.korea.kr |language=ko}}</ref>

In December 2015, Hanwha Techwin signed a contract with the DAPA for a 2nd production batch. In January 2018, Hanwha Land Systems announced a 166.4 billion KRW contract with the DAPA for a 3rd production batch and related products.<ref>{{Cite web |last=NEWSIS |date=2018-01-02 |title=한화테크윈 종속사, 방위청과 4729억원 규모 공급 계약 체결 |url=https://www.newsis.com/view/?id=NISX20180102_0000192400 |access-date=2022-08-22 |website=[[Newsis]] |language=ko}}</ref> In June 2020, Hanwha Defense announced 380.3 billion KRW contract with the DAPA for a 4th production batch.<ref>{{Cite web  |date=2020-06-30 |title=한화디펜스, 3803억원 규모 K56 장갑차 4차 양산 계약 |url=https://news.mt.co.kr/mtview.php?no=2020063008480370321 |access-date=2022-08-22 |website=Money Today |language=ko}}</ref> South Korea plans a 5th production batch and to achieve full operational capability by 2025. All K56s were delivered to the western front.<ref>{{Cite web  |title=K56 탄약운반장갑차 |url=https://kookbang.dema.mil.kr/newsWeb/20210322/1/BBSMSTR_000000100160/view.do |access-date=2022-08-22 |website=국방일보 |archive-date=31 January 2023 |archive-url=https://web.archive.org/web/20230131175543/https://kookbang.dema.mil.kr/newsWeb/20210322/1/BBSMSTR_000000100160/view.do |url-status=dead }}</ref>