Germany started the process of pulling military hardware from a Turkish airbase on Sunday, deepening the already tense relationship between the two countries.

The German armed forces were set to start pulling out of the Incirlik base to a location in Jordan, according to Der Spiegel.

The German military will post itself at al-Azrak base in Jordan, which is also where Dutch, Belgian and American troops are based, according to the German publication.

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The development follows a disagreement between the two countries, in which both parties were unable to reach a consensus on whether German politicians could visit troops stationed at Incirlik air base.

Roughly 260 German military personnel had been stationed at the base as part of the global effort to combat the Islamic State in Iraq and Syria (ISIS), according to Politico.

Tensions between Berlin and Ankara have worsened since Germany’s lower house of parliament, the Bundestag, almost unanimously passed a resolution recognizing the Armenian genocide, causing Turkey to recall its ambassador.

The German military will remain posted in Turkey as part of a NATO mission, according to Der Spiegel.