Ukrainian troops destroyed a pontoon crossing in the Luhansk sector. Russian troops were using it to supply reinforcements and ammunition, according to the Unmanned Systems Forces of the Armed Forces of Ukraine. “Operators of the 412th separate battalion of unmanned systems NEMESIS destroyed a pontoon crossing in the Luhansk sector, through which the Russians supplied reinforcements and ammunition,” the Unmanned Systems Forces writes. Pontoon ferry A pontoon crossing is a temporary structure used to turn water obstacles, such as rivers or canals, into travel routes. It consists of pontoons tha…