The Palestinians consider East Jerusalem to be their capital (as does most of the planet). Israel captured East Jerusalem during the Six Day War in 1967.
In June 1967, Israel passed the Municipalities Ordinance (Amendment No. 6) Law – which extended Israeli law and jurisdiction to East Jerusalem. In 1980, it illegally annexed East Jerusalem as part of the Basic Law of Jerusalem.
In response to the 1967 act, the United Nations Security Council adopted Resolution 252, which reaffirmed that “acquisition of territory by military conquest is inadmissible.” The resolution also stated that:
[…] all legislative and administrative measures and actions taken by Israel, including expropriation of land and properties thereon, which tend to change the legal status of Jerusalem are invalid and cannot change that status.
See the Charter of the United Nations (1945). If anyone is wondering why we have customary international law and norms, then read up on the history of colonialism, WW1 and WW2, etc.
“While annexation has not disappeared from the modern world, this strict prohibition in international law has had a considerable dampening effect,” said Lynk. He noted that the instances of annexation since 1948 have significantly declined, compared to the 120 years before the Second World War. “The power of the prohibition is that annexations in the modern world, when they do happen, are rarely recognized by other nations. International law, when married to international resolve, works.”
In other words, international law works.
The Palestinians in Sheikh Jarrah were ethnically cleansed by Israeli forces in 1948. The Israeli courts have ruled that these families living there will be thrown out to make way for Jewish settlers.:
In 1956, 28 Palestinian refugee families displaced from their homes in the coastal cities of Yafa and Haifa eight years prior eventually settled into the Karm al-Jaouni area in Sheikh Jarrah.
[…] Khalil Toufakji, a Palestinian cartographer and expert on Jerusalem, said he travelled to Ankara in 2010 to search in the Ottoman-era archives for a document that negates any Jewish ownership of Karm al-Jaouni.
“I found the deed and presented it to the Israeli district court, which promptly rejected it,” Toufakji told Al Jazeera.
The Palestinian families being ethnically cleansed by Israel in East Jerusalem, were already ethnically cleansed by Israel in 1948.
East Jerusalem is occupied territory; it is not Israeli territory. East Jerusalem is considered to be the capital of a future Palestinian State.
At least some of the settlers being moved into their homes may have presented fake documentation to convince Israeli courts of their residency.
Palestinians were able to get documentation from Turkey proving this, but Israeli courts denied them.
Turkish officials recently helped to trace the document which could end a 30-year-old dispute over the ownership of around 30 buildings in the Sheikh Jarrah neighborhood.
The Palestinians’ attorneys said they were granted access to the archives following the recent souring of the relations between Israel and Turkey.
“Until half a year ago the Turks didn’t want to spoil their relations with Israel and were unhelpful,” attorney Hatam Abu Ahmed said. “They would put us off with all kinds of excuses. Today their attitude has changed. We felt this change especially after the Gaza operation. Now senior Turkish officials are helping us.”
In January, attorney Salah Abu Hussein traveled to Turkey and with the help of local officials found a document proving that the Jews demanding the Palestinians’ eviction are not the compound’s rightful owners.