PowerPoint Show by Andrew

Earlier today, Ukrainian president Petro Poroshenko accused Russian troops of entering Ukraine, and NATO issued a statement saying that they were tracking well over 1,000 Russian combat soldiers operating heavy weaponry within Ukraine's borders.

Ukrainian government forces had been regaining territory held by rebels in recent weeks, only to have the separatists open up battles on new fronts in the region.

Caught in the middle is the civilian population, suffering hundreds of injuries and deaths as a result of massive shelling campaigns.

Local residents watch as smoke rises, during shelling, in the town of Novoazovsk, eastern Ukraine, on August 27, 2014.

Ukrainian servicemen take cover after firing a cannon during a military operation against pro-Russian separatists near Pervomaisk, Luhansk region.

Freight cars loaded with self-propelled howitzers sit in a railway station in Kamensk-Shakhtinsky, Russia's Rostov region, near the border with Ukraine.

A pro-Russian rebel stands at a checkpoint on the outskirts of Donetsk near a bullet-riddled bus, in eastern Ukraine, on August 13, 2014.

A local man cycles past a building damaged during fighting between pro-Russian separatists and the Ukrainian army in village of Semenivka.

A body lies on the pavement after shelling in the town of Makiyivka on August 19, 2014.

Pro-Russian rebels talk in a field near the village of Khryaschevatoye, eastern Ukraine, on August 22, 2014.

Ukrainian soldiers park their vehicles on the roadside as they wait for the start of a march into the town of Mariupol, eastern Ukraine, on August 27, 2014.

A Ukrainian soldier sits atop a self-propelled gun as an army column of military vehicles prepares to roll to a frontline near Illovaisk.

A group of Russian servicemen, detained by Ukrainian authorities, attend a news conference in Kiev on August 27, 2014.

Volunteers take an oath of allegiance to Ukraine before being sent to join the ranks of special battalion unit fighting against pro-Russian separatists.

A Ukrainian Mi-24 helicopter gunship flies above a military base in the eastern Ukrainian town of Kramatorsk on August 26, 2014.

A priest blesses volunteers before they were sent to the eastern part of Ukraine to fight against pro-Russian separatists.

Smoke billows over residential apartment buildings following shelling in Donetsk on August 24, 2014.

A pile of rubble stands in front of a multi-story building.

A wounded Ukrainian woman receives treatment after shelling in Donetsk.

Employees unload coffins near graves of pro-Russian separatists.

Pro-Russian rebels escort captured Ukrainian army prisoners in a central square in Donetsk on August 24, 2014.

Armed pro-Russian separatists escort a column of Ukrainian prisoners of war as they walk across central Donetsk on August 24, 2014.

A Ukrainian serviceman, at his position during fighting with pro-Russian separatists in the eastern Ukrainian town of Ilovaysk.

Pro-Russian rebels ride on a tank near the town of Makeyevka, eastern Ukraine, on August 23, 2014.

A dead body lies in a street in the southwestern Petrovsky district of Donetsk after shelling on August 13, 2014.

A slipper lies near bloodstains on a street after recent shelling in the settlement of Makiivka, on the outskirts of Donetsk.

Ukrainian government soldiers walk past a burning field after shelling of their base by pro-Russian rebel artillery near Illovaisk.

People gather at a temporary camp for Ukrainian refugees outside Donetsk.

Local residents cry and hug each other as they sit in a hospital basement being used as a bomb-shelter.