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            <front>

                <journal-meta>
                                                                <journal-id>sutad</journal-id>
            <journal-title-group>
                                                                                    <journal-title>Selçuk Üniversitesi Türkiyat Araştırmaları Dergisi</journal-title>
            </journal-title-group>
                            <issn pub-type="ppub">1300-5766</issn>
                                        <issn pub-type="epub">2458-9071</issn>
                                                                                            <publisher>
                    <publisher-name>Selçuk Üniversitesi</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id pub-id-type="doi">10.21563/sutad.1626849</article-id>
                                                                <article-categories>
                                            <subj-group  xml:lang="en">
                                                            <subject>General Turkish History (Other)</subject>
                                                            <subject>History of The Byzantine</subject>
                                                    </subj-group>
                                            <subj-group  xml:lang="tr">
                                                            <subject>Genel Türk Tarihi (Diğer)</subject>
                                                            <subject>Bizans Tarihi</subject>
                                                    </subj-group>
                                    </article-categories>
                                                                                                                                                        <title-group>
                                                                                                                                                                                                <trans-title-group xml:lang="en">
                                    <trans-title>Assistance of the Danubian Bulgarian State to the Byzantine Empire</trans-title>
                                </trans-title-group>
                                                                                                                                                                                                <article-title>Tuna Bulgar Devleti’nin Bizans İmparatorluğu’na Yardımları</article-title>
                                                                                                    </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0002-0200-4430</contrib-id>
                                                                <name>
                                    <surname>Küskü</surname>
                                    <given-names>Orhun</given-names>
                                </name>
                                                                    <aff>KTO KARATAY ÜNİVERSİTESİ</aff>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20260425">
                    <day>04</day>
                    <month>25</month>
                    <year>2026</year>
                </pub-date>
                                                    <issue>67</issue>
                                        <fpage>33</fpage>
                                        <lpage>59</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20250125">
                        <day>01</day>
                        <month>25</month>
                        <year>2025</year>
                    </date>
                                                    <date date-type="accepted" iso-8601-date="20251117">
                        <day>11</day>
                        <month>17</month>
                        <year>2025</year>
                    </date>
                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 1994, Selçuk Üniversitesi Türkiyat Araştırmaları Dergisi</copyright-statement>
                    <copyright-year>1994</copyright-year>
                    <copyright-holder>Selçuk Üniversitesi Türkiyat Araştırmaları Dergisi</copyright-holder>
                </permissions>
            
                                                                                                                                                <trans-abstract xml:lang="en">
                            <p>Although the Danubian Bulgarian State posed a serious threat to its neighbor, theByzantine Empire, from the time of its emergence in the Balkans, it providedmilitary and political assistance that benefited the Empire during certain events.After the Danubian Bulgarian khans succeeded in establishing their politicalpresence against Byzantium during the foundational phase, their primaryobjective was to protect and increase the state&#039;s political and commercial gains.Therefore, they closely monitored internal Byzantine developments, seekingopportunities to intervene once the necessary conditions were met. Theseinterventions were not typical conflicts between two adversarial states but wereinstead based on a relationship of interest, functioning as either voluntary orforced alliances. This study aims to examine these events in detail in light ofprimary sources under three separate headings: throne struggles, external enemies, and internal rebellions. The first of these is the restoration of Justinian IIto the throne in 705 during the reign of Khan Tervel. The second is theintervention of the Danubian Bulgarians via the Thrace region during the Arabsiege of Constantinople in 717–718. The last is the support provided by KhanOmurtag in suppressing the internal rebellion led by Thomas the Slav, whichblockaded the capital and lasted from 821 to 823.</p></trans-abstract>
                                                                                                                                    <abstract><p>Tuna Bulgar Devleti, Balkan coğrafyasında ortaya çıktığı tarihten itibaren sınırkomşusu Bizans İmparatorluğu için ciddi bir tehdit oluşturmasına rağmen bazıolaylarda imparatorluğun faydasına dokunan birtakım yardımlarda bulunmuştur.Tuna Bulgar hanlarının kuruluş aşamasında Bizans’a karşı siyasimevcudiyetlerini kabul ettirmeyi başarmalarından sonraki yegâne amaçları,devletin siyasi ve ticari kazançlarını korumak ve arttırmaktı. Bundan dolayıBizans dâhilinde cereyan eden olayları yakından takip ederek fırsat kollamışlar vegerekli şartlar oluştuktan sonra da müdahale etmişlerdir. Söz konusuyardımlar/müdahaleler iki düşman devlet arasında gerçekleşebilecek çatışmalargibi olmayıp daha çok gönüllü veya zoraki bir müttefiklik hâlinde, çıkara dayalı birilişki üzerine kurulmuştur. Bu çalışmada taht çekişmesi, dış düşman ve iç isyanşeklinde üç ayrı başlık altında ele alınarak ana kaynaklar ışığında detaylıcaincelenmesi hedeflenmiştir. Bunlardan ilki, Tervel Han döneminde 705 yılında II.Iustinianos’un ikinci kez tahta çıkışının sağlanmasıdır. İkincisi, MüslümanArapların 717-718 tarihli Konstantinopolis kuşatmasına Tuna BulgarlarınTrakya bölgesi üzerinden müdahalesidir. Sonuncusu ise Omurtag Han’ınimparatorluk içerisinde Slav Thomas’ın liderliğini üstlendiği, başkenti ablukaaltına almaya kadar giden ve 821-823 yılları arasında süren iç isyanınbastırılmasındaki yardımıdır.</p></abstract>
                                                            
            
                                                                                                                                                <kwd-group>
                                                    <kwd>Tuna Bulgar Devleti</kwd>
                                                    <kwd>  Bizans İmparatorluğu</kwd>
                                                    <kwd>  Tervel Han</kwd>
                                                    <kwd>  Konstantinopolis</kwd>
                                                    <kwd>  Slav Thomas</kwd>
                                            </kwd-group>
                            
                                                                                                        <kwd-group xml:lang="en">
                                                    <kwd>Danube Bulgarian State</kwd>
                                                    <kwd>  Byzantine Empire</kwd>
                                                    <kwd>  Tervel Khan</kwd>
                                                    <kwd>  Constantinople</kwd>
                                                    <kwd>  Thomas the Slav</kwd>
                                            </kwd-group>
                                                                                                                                        </article-meta>
    </front>
    <back>
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