For all others, there are definitely strings attached. For Egypt and Jordan, they had to seel their signature on a peace treaty with Israel and also they had to avoid upsetting Israel over the years in order to get aid. There were some instances when Egypt under Mubarak irritated the Israeli government who then went to the American congress and complained. The congress immediately cut Egypt's aid for that year.
Saudi king to meet with Obama on Friday amid Gulf concerns over Iran deal (Reuters)
from the article: Egypt warns U.S. not to link military aid to democratic transition