Members of the UAE Armed Forces demonstrate skills during the opening of the International Defence Exhibition & Conference (IDEX) in Abu Dhabi, United Arab Emirates February 17, 2019.

Lieutenant General Charles Hooper, Director of the U.S. Defense Security Cooperation Agency speaks to journalists during the International Defence Exhibition & Conference (IDEX) in Abu Dhabi, United Arab Emirates February 17, 2019.

A general view of the Saudi Arabian Military Industries (SAMI) exhibit is seen during the International Defence Exhibition & Conference (IDEX) in Abu Dhabi, United Arab Emirates February 17, 2019.

Members of the UAE Armed Forces demonstrate skills during the opening of the International Defence Exhibition & Conference (IDEX) in Abu Dhabi, United Arab Emirates February 17, 2019.

Saudi Arabian Military Industries (SAMI) logo is seen during the International Defence Exhibition & Conference (IDEX) in Abu Dhabi, United Arab Emirates February 17, 2019.

Abu Dhabi's Crown Prince Mohammed bin Zayed Al-Nahyan attends the International Defence Exhibition & Conference (IDEX) in Abu Dhabi, United Arab Emirates February 17, 2019.

Dubai's Ruler Sheikh Mohammed bin Rashid al-Maktoum, Prime Minister and Vice-President of the United Arab Emirates attends the International Defence Exhibition & Conference (IDEX) in Abu Dhabi, United Arab Emirates February 17, 2019.

Members of the UAE Armed Forces demonstrate skills during the opening of the International Defence Exhibition & Conference (IDEX) in Abu Dhabi, United Arab Emirates February 17, 2019.

Abu Dhabi's Crown Prince Mohammed bin Zayed Al-Nahyan (2nd L) and Dubai's Ruler Sheikh Mohammed bin Rashid al-Maktoum, Prime Minister and Vice-President of the United Arab Emirates (R) attend the International Defence Exhibition & Conference (IDEX) in Abu Dhabi, United Arab Emirates February 17, 2019. REUTERS/Christopher Pike

Members of the UAE Armed Forces demonstrate skills during the opening of the International Defence Exhibition & Conference (IDEX) in Abu Dhabi, United Arab Emirates February 17, 2019.

Members of the UAE Armed Forces demonstrate skills during the opening of the International Defence Exhibition & Conference (IDEX) in Abu Dhabi, United Arab Emirates February 17, 2019.