Legal Assistant to the Military Advocate General, Major General Avichai Mandelblit, 2007 – 2009. As legal assistant to the Military Advocate General, Yehoshua dealt with all legal fields relevant to the IDF – Criminal Law, Constitutional and Administrative Law, Civil Law and International Law. He prepared legal documents and opinions for the highest levels of Israel's security and legal administration, dealt with petitions to Israel's High Court of Justice on security matters, advised decision-makers in the highest echelons of the IDF chain-of-command on legal matters, and represented the IDF in assorted Israeli and international forums. Israel Defense Forces, International Law Department, 2003 – 2007. Amongst his assorted roles in the International Law Department, Yehoshua provided legal advice in the fields of operational law and the laws of armed conflict; served as Legal Advisor to Israeli delegations to international negotiations with neighboring states, international forces and the United Nations; provided legal advice relating to the IDF's strategic ties and security cooperation endeavours and provided legal advice on diplomatic and consular law and on maritime and airspace law. Military Prosecutor, Military Prosecution for Judea and Samaria, 2002 – 2003.