Armed incursions from Darfur are frequent across the porous border, endangering humanitarian convoys on the 11-hour drive from the nearest gravel road.
Such antiquated policy in the treatment of our neighbours stands in disproportionate contrast to the "unintended" incursions of naval ships, armed to the teeth with every piece of radar and satellite equipment under the sun, who have suffered no cost or damage as a result of their action.
Last week Microsoft filed its appeal: "The power to embark on unilateral law enforcement incursions into a foreign sovereign country – directly or indirectly – has profound foreign policy consequences.
Besides the loss of the trees themselves, it is the incursions and what follows that have the most impact.
Britain was pulled closer towards a renewed cold war with Russia when David Cameron announced UK military trainers are to be deployed to help Ukraine forces stave off further Russian backed incursions into its sovereign territory.
Although the defence secretary, Michael Fallon, had earlier highlighted Russian air incursions along the Channel, Cameron produced figures to play down suggestions that the Russians were stepping up pressure on the UK.
We're not fighting this as one people, we're not seeing Boko Haram as everybody's enemy, and that's partly why they've been able to make so many incursions".
The defence ministry of the de facto Nagorno-Karabakh republic also said two of its soldiers had been killed as a result of attempted incursions by Azerbaijan.
Four of these incursions were committed by the Royal Australian navy, and two by Customs and Border Protection.
In February, the defence and customs review reported on the six recent incursions undertaken by the Australian navy in Indonesian waters, asserting that "on each occasion the incursion was inadvertent … each arose from incorrect calculation of the boundaries of Indonesian waters rather than as a deliberate action or navigational error".
That set off a storm of protests in China, a slump in Japanese exports to China and in Chinese tourists to Japan, and incursions by Chinese vessels into the waters around the Senkakus.In theory, ownership is straightforward.
