The claim that Germany is sending two warships to Greenland that can both strike planes in the air is mostly false because available reliable sources confirm Germany sent a single replenishment tanker with limited defensive capabilities, not two warships equipped for air strikes.
Germany is sending two war ships into Greenland. Both can strike planes in the air.

Germany sends warship to Greenland to signal Arctic solidarity - ArcticToday
Source: arctictoday.com
Key Evidence
The German Navy's Berlin tanker was reported to have visited Greenland for Arctic exercises, carrying helicopters but not described as an offensive warship.
arctictoday.comarctictoday.comGermany sends warship to Greenland to signal Arctic solidarity
navalnews.comnavalnews.comGerman Navy ship calls in Greenland for the first time
No credible sources confirm deployment of two German warships or their air strike capability.
The Facebook videos lack verifiable information and are insufficient to substantiate the claim.
What the Evidence Shows
Recent credible reports indicate that Germany has deployed a single naval vessel, the replenishment tanker Berlin, to Greenland as part of Arctic military exercises and to signal solidarity in the region.arctictoday.comarctictoday.comGermany sends warship to Greenland to signal Arctic solidarity
navalnews.comnavalnews.comGerman Navy ship calls in Greenland for the first time This ship primarily serves logistical and support roles, including carrying fuel, medical facilities, and helicopters. There is no verified evidence from reliable sources that Germany is sending two warships specifically to Greenland or that these ships have offensive air strike capabilities. The Facebook videos cited lack descriptions and verifiable details, reducing their reliability. No authoritative news or defense sources corroborate the claim of two warships or their ability to strike aircraft. The German Navy's known deployments in the Arctic region focus on support and presence rather than offensive air defense or strike missions.+2 more
Other sources discuss historical and geopolitical contexts around Greenland and military presence but do not support the specific claim about German warships with air strike capabilities ( through ). Thus, the core factual elements of the claim are not supported by high-quality evidence.theguardian.comtheguardian.comA brief history of US military bases in Greenland
theguardian.comtheguardian.comUS attack on Greenland would mean end of Nato, says Danish PM