Sen. Lindsey Graham (R-S.C.) on Sunday charted a new strategy for Israel in its war with Hamas, with the chances of a diplomatic solution to the conflict appearing increasingly remote.

The Israeli military has intercepted a Gaza-bound aid ship, detaining 21 international activists and journalists and seizing all cargo, including baby formula, food, and medicine, according to the Freedom Flotilla Coalition.

For years, Gazans haven’t had free access to this precious natural resource. Israeli limits on fishing activities have fluctuated with tensions with Hamas, with limits of just three nautical miles and even previous total bans on fishing imposed at times.